ci: add riscv32im-risc0-zkvm-elf target

Author: MarcosNicolau

.github/workflows/build-and-test-rust.yml

@@ -35,6 +35,7 @@ jobs:
         run: |
          curl -L https://risczero.com/install | bash
          source /home/runner/.bashrc
+         rustup target add riscv32im-risc0-zkvm-elf
          /home/runner/.risc0/bin/rzup install
 
       - name: Cache Rust dependencies
@@ -99,6 +100,7 @@ jobs:
         run: |
          curl -L https://risczero.com/install | bash
          source /home/runner/.bashrc
+         rustup target add riscv32im-risc0-zkvm-elf
          rzup install
 
       - name: Cache Rust dependencies