Update action.yml

Author: mcbarton

.github/actions/Miscellaneous/Select_Default_Build_Type/action.yml

@@ -12,9 +12,9 @@ runs:
         echo "CODE_COVERAGE=0" >> $GITHUB_ENV
         os="${{ matrix.os }}"
         if [[ "${os}" != "macos"* ]]; then
-          echo "ncpus=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV
+          echo "ncpus=$(nproc --all)" >> $GITHUB_ENV      
         else
-          echo "ncpus=$(nproc --all)" >> $GITHUB_ENV
+          echo "ncpus=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV
         fi
 
     - name: Select default build type on Windows