Unset INCLUDE env var

- avoids including system headers

Author: mrbean-bremen

.github/workflows/build.yml

@@ -323,6 +323,7 @@ jobs:
       run: |
         cd generator
         set QTDIR=%Qt5_Dir%
+        set INCLUDE=
         pythonqt_generator
 
     - name: Upload Wrappers

.github/workflows/build_latest.yml

@@ -79,6 +79,7 @@ jobs:
       shell: bash
       run: |
         cd generator
+        unset INCLUDE
         if [[ ${{ matrix.os }} == 'windows' && ${{ matrix.qt-version }} =~ '5.1' ]]; then export QTDIR=$Qt5_Dir; fi 
         UBSAN_OPTIONS="halt_on_error=1" \
         ASAN_OPTIONS="detect_leaks=0:detect_stack_use_after_return=1:fast_unwind_on_malloc=0" \