[CI] Fixed Issue with Clang Builds

Author: AlexandreSinger

.github/workflows/test.yml

@@ -611,16 +611,17 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - { name: 'GCC 12 (Ubuntu Noble - 24.04)',    eval: 'CC=gcc-12 && CXX=g++-12',       key: 'gcc-12', }
-        - { name: 'GCC 14 (Ubuntu Noble - 24.04)',    eval: 'CC=gcc-14 && CXX=g++-14',       key: 'gcc-14', }
-        - { name: 'Clang 16 (Ubuntu Noble - 24.04)',  eval: 'CC=clang-16 && CXX=clang++-16', key: 'clang-16', }
-        - { name: 'Clang 17 (Ubuntu Noble - 24.04)',  eval: 'CC=clang-17 && CXX=clang++-17', key: 'clang-17', }
-        - { name: 'Clang 18 (Ubuntu Noble - 24.04)',  eval: 'CC=clang-18 && CXX=clang++-18', key: 'clang-18', }
+        - { name: 'GCC 12 (Ubuntu Noble - 24.04)',    CC: 'gcc-12',   CXX: 'g++-12',     }
+        - { name: 'GCC 14 (Ubuntu Noble - 24.04)',    CC: 'gcc-14',   CXX: 'g++-14',     }
+        - { name: 'Clang 16 (Ubuntu Noble - 24.04)',  CC: 'clang-16', CXX: 'clang++-16', }
+        - { name: 'Clang 17 (Ubuntu Noble - 24.04)',  CC: 'clang-17', CXX: 'clang++-17', }
+        - { name: 'Clang 18 (Ubuntu Noble - 24.04)',  CC: 'clang-18', CXX: 'clang++-18', }
         # Note: We do not include GCC-13 since it is the default and is already tested.
         #       We also do not include GCC-11 since it is tested in the JammyCompatibility test.
     name: 'B: ${{ matrix.name }}'
     env:
-      MATRIX_EVAL: ${{ matrix.eval }}
+      CC: ${{ matrix.CC }}
+      CXX: ${{ matrix.CXX }}
     steps:
 
     - uses: actions/checkout@v4
@@ -636,7 +637,7 @@ jobs:
 
     - uses: hendrikmuhs/ccache-action@v1.2
       with:
-        key: ${{ github.job }}-${{ matrix.key }}
+        key: ${{ github.job }}-${{ matrix.CC }}
 
     - name: Build
       env:
@@ -651,7 +652,8 @@ jobs:
     runs-on: ubuntu-22.04
     needs: [BuildVTR]
     env:
-      MATRIX_EVAL: "CC=gcc-11 && CXX=g++-11"
+      CC: gcc-11
+      CXX: g++-11
     steps:
     - uses: actions/checkout@v4
       with: