openmp with libmam-solver

Author: mengdilin

.github/actions/build_cmake/action.yml

@@ -36,6 +36,7 @@ runs:
 
         # install base packages for ARM64
         if [ "${{ runner.arch }}" = "ARM64" ]; then
+          conda install --solver=classic conda-forge::conda-libmamba-solver conda-forge::libmamba conda-forge::libmambapy conda-forge::libarchive
           conda install -y -q -c conda-forge openblas=*=*openmp* gxx_linux-aarch64 sysroot_linux-aarch64
         fi