Exclude ARM builds with GCC 12 from the CI matrix

Author: Alex-PLACET

.github/workflows/linux.yml

@@ -39,6 +39,12 @@ jobs:
         # - {compiler: gcc, version: '15', name: tbb, flags: -DXTENSOR_USE_TBB=ON -DTBB_INCLUDE_DIR=$CONDA_PREFIX/include -DTBB_LIBRARY=$CONDA_PREFIX/lib}
         # - {compiler: gcc, version: '16', name: xsimd-tbb, flags: -DXTENSOR_USE_XSIMD=ON -DXTENSOR_USE_TBB=ON}
         # - {compiler: gcc, version: '16', name: tbb, flags: -DXTENSOR_USE_TBB=ON -DTBB_INCLUDE_DIR=$CONDA_PREFIX/include -DTBB_LIBRARY=$CONDA_PREFIX/lib}
+        exclude:
+          - os: ubuntu-24.04-arm
+            sys:
+              compiler: gcc
+              version: '12'
+         
     steps:
     - name: Install GCC
       if: matrix.sys.compiler == 'gcc'