GHA: Back to working gcc14

Author: drowaudio

.github/workflows/test.yaml

@@ -27,10 +27,12 @@ jobs:
       - name: Configure & Build
         shell: bash
         run: |
-          export CC=/usr/bin/gcc-14
-          export CXX=/usr/bin/g++-14
-          gcc -v
-          g++ -v
+          if [ "$OSTYPE" = "linux-gnu" ]; then
+            export CC=/usr/bin/gcc-14
+            export CXX=/usr/bin/g++-14
+            gcc -v
+            g++ -v
+          fi
 
           cmake -B build_dir -DCMAKE_BUILD_TYPE=${{ matrix.build_config }}
           cmake --build build_dir --config ${{ matrix.build_config }}