ML-DSA Wconversion fixes

[Frauschi]

Add ML-DSA to Wconversion CI tests and add required casts to fix all errors. Required for FIPS 140-3 certification.

[github-actions]

MemBrowse Memory Report

No memory changes detected for:

• gcc-arm-cortex-m4
• gcc-arm-cortex-m4-baremetal
• gcc-arm-cortex-m4-min-ecc
• gcc-arm-cortex-m4-tls12

[douzzer]

seeing some new warnings from this currently, atop current (6a3eb6f) master:

[quantum-safe-wolfssl-all-clang-tidy] [29 of 42] [41a62b2e29]
    configure with clang-tidy...   real 0m12.471s  user 0m0.002s  sys 0m0.005s
    build...075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 2835)             state[4*4 + l] = (word64)(0x1f0000U + ((word32)k << 8) + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:2835:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
2835 |             state[4*4 + l] = (word64)(0x1f0000U + ((word32)k << 8) + (word32)l);
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 2942)             state[4*4 + l] = (word64)(0x1f0000U + ((word32)((k + l) / 5) << 8) +
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:2942:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
2942 |             state[4*4 + l] = (word64)(0x1f0000U + ((word32)((k + l) / 5) << 8) +
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 2997)         state[4*4 + l] = (word64)(0x1f0000U + (5U << 8) + (word32)(l + 3));
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:2997:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
2997 |         state[4*4 + l] = (word64)(0x1f0000U + (5U << 8) + (word32)(l + 3));
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 3088)             state[4*4 + l] = (word64)(0x1f0000U + ((word32)((k + l) / 7) << 8) +
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:3088:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
3088 |             state[4*4 + l] = (word64)(0x1f0000U + ((word32)((k + l) / 7) << 8) +
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 3700)             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:3700:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
3700 |             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 3813)             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:3813:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
3813 |             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 3866)         state[8*4 + l] = (word64)(0x1f0000U + 8U + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:3866:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
3866 |         state[8*4 + l] = (word64)(0x1f0000U + 8U + (word32)l);
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 3968)             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:3968:30: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
3968 |             state[8*4 + l] = (word64)(0x1f0000U + ((word32)k * 4U + (word32)l));
|                              ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 4021)         state[8*4 + l] = (word64)(0x1f0000U + 12U + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:4021:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
4021 |         state[8*4 + l] = (word64)(0x1f0000U + 12U + (word32)l);
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 4224)         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:4224:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
4224 |         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 4294)         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:4294:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
4294 |         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 4372)         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:4372:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
4372 |         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
|                          ^
075e6a3f8a (<tobias@wolfssl.com> 2026-05-05 15:21:15 +0200 4401)         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
/tmp/tmp.4346_38755/wolfssl_test_workdir.2622907/wolfssl/wolfcrypt/src/dilithium.c:4401:26: warning: either cast from 'unsigned int' to 'word64' (aka 'unsigned long') is ineffective, or there is loss of precision before the conversion [bugprone-misplaced-widening-cast]
4401 |         state[8*4 + l] = (word64)(0x1f0000U + (word32)kappa + (word32)l);
|                          ^
Suppressed 18 warnings (18 in non-user code).
   real 0m16.168s  user 0m0.061s  sys 0m0.075s
    clang-tidy reported defects in 1 file(s).