.github: add checks for priority inheritance protocol builds

Adds additional jobs to test with `SPDLOG_PRIORITY_INHERITANCE` enabled.

Signed-off-by: James Knight <git@jdknight.me>

.github/workflows/linux.yml

@@ -22,12 +22,14 @@ jobs:
           - { compiler: gcc, version: 9, build_type: Release, cppstd: 17 }
           - { compiler: gcc, version: 11, build_type: Debug, cppstd: 20 }
           - { compiler: gcc, version: 12, build_type: Release, cppstd: 20 }
+          - { compiler: gcc, version: 12, build_type: Release, cppstd: 20, pi: ON }
           - { compiler: gcc, version: 12, build_type: Debug, cppstd: 20, asan: ON }
           - { compiler: clang, version: 12, build_type: Debug, cppstd: 17 }
+          - { compiler: clang, version: 15, build_type: Release, cppstd: 20, pi: ON }
           - { compiler: clang, version: 15, build_type: Release, cppstd: 20, tsan: ON }
     container:
       image: ${{ matrix.config.compiler == 'clang' && 'teeks99/clang-ubuntu' || matrix.config.compiler }}:${{ matrix.config.version }}
-    name: "${{ matrix.config.compiler}} ${{ matrix.config.version }} (C++${{ matrix.config.cppstd }} ${{ matrix.config.build_type }} ${{ matrix.config.asan == 'ON' && 'ASAN' || '' }}${{ matrix.config.tsan == 'ON' && 'TSAN' || '' }})"
+    name: "${{ matrix.config.compiler}} ${{ matrix.config.version }} (C++${{ matrix.config.cppstd }} ${{ matrix.config.build_type }}${{ matrix.config.asan == 'ON' && ' ASAN' || '' }}${{ matrix.config.tsan == 'ON' && ' TSAN' || '' }}${{ matrix.config.pi == 'ON' && ' PI' || '' }})"
     steps:
       - uses: actions/checkout@v4
       - name: Setup
@@ -57,6 +59,7 @@ jobs:
             -DSPDLOG_BUILD_BENCH=OFF \
             -DSPDLOG_BUILD_TESTS=ON \
             -DSPDLOG_BUILD_TESTS_HO=OFF \
+            -DSPDLOG_PRIORITY_INHERITANCE=${{ matrix.config.pi || 'OFF' }} \
             -DSPDLOG_SANITIZE_ADDRESS=${{ matrix.config.asan || 'OFF' }} \
             -DSPDLOG_SANITIZE_THREAD=${{ matrix.config.tsan || 'OFF' }}
           make -j 4