message: Fix GitHub Actions CI gcc/clang versions
diff: @@ -14,7 +14,7 @@ jobs:
  runs-on: ubuntu-latest
  strategy:
  matrix:
  - cxx: [g++-11, clang++-11]
  + cxx: [g++-10, clang++-12]
  steps:
  - uses: actions/checkout@v1
  - name: cmake
  @@ -103,7 +103,7 @@ jobs:
  runs-on: ubuntu-latest
  strategy:
  matrix:
  - cxx: [g++-11, clang++-11]
  + cxx: [g++-10, clang++-12]
  steps:
  - uses: actions/checkout@v1
  - name: cmake
  