update the macosx github runner

Author: mkstoyanov

.github/workflows/build-macos.yaml

@@ -20,9 +20,9 @@ jobs:
     continue-on-error: false
     strategy:
       matrix:
-        runner: [macos-11]
-        compiler: [clang++, g++-11] # $(brew --prefix llvm)/bin/clang++ (clang-11)
-        fortran_compiler: [gfortran-11]
+        runner: [macos-14]
+        compiler: [clang++, g++-13] # $(brew --prefix llvm)/bin/clang++ (clang-11)
+        fortran_compiler: [gfortran-13]
 
     steps:
       - uses: actions/checkout@v2
@@ -36,12 +36,11 @@ jobs:
           -D CMAKE_CXX_FLAGS="-O3 -Wall -Wextra -Wshadow -pedantic"
           -D CMAKE_CXX_COMPILER=${{ matrix.compiler }}
           -D CMAKE_Fortran_COMPILER=${{ matrix.fortran_compiler }}
-          -D PYTHON_EXECUTABLE=/usr/local/bin/python3
           -D Tasmanian_ENABLE_FORTRAN=ON
           -D Tasmanian_ENABLE_RECOMMENDED=ON
-          -D Tasmanian_TESTS_OMP_NUM_THREADS=4 .. &&
-          make -j4
+          -D Tasmanian_TESTS_OMP_NUM_THREADS=3 .. &&
+          make -j3
       - name: Test
-        run: cd build && ctest -j4 -V --no-compress-output -T Test
+        run: cd build && ctest -V --no-compress-output -T Test
       - name: Install
         run: cd build && make install && make test_install