Switch to 11 for cov.

Author: neoblizz

.github/workflows/coverage.yml

@@ -25,7 +25,7 @@ jobs:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v4
 
-      - run: sudo apt-get update && sudo apt-get install -y gcc-13 g++-13 lcov cmake git
+      - run: sudo apt-get update && sudo apt-get install -y gcc-11 g++-11 lcov cmake git
         shell: bash
 
       - name: Configure cmake
@@ -34,8 +34,8 @@ jobs:
         run: cmake -B ${{github.workspace}}/build -D ENABLE_COVERAGE=ON
         shell: bash
         env:
-          CC:   gcc-13
-          CXX:  g++-13
+          CC:   gcc-11
+          CXX:  g++-11
 
       - name: Build all applications
         run: cmake --build ${{github.workspace}}/build