attempt to fix tests

Author: JackJ30

.github/workflows/cmake-multi-platform.yml

@@ -66,7 +66,7 @@ jobs:
         build-dir: ${{ steps.strings.outputs.build-output-dir }}
         cc: ${{ matrix.c_compiler }}
         cxx: ${{ matrix.cpp_compiler }}
-        configure-options: -DGatality_BuildApp=OFF -DGatality_BuildTests=ON
+	build-options: --target Gatality_tests
         build-type: ${{ matrix.build_type }}
 
     - name: Build