Try to fix action

Author: mcbarton

.github/actions/Build_and_Test_cppyy/action.yml

@@ -143,9 +143,11 @@ runs:
         # Download cppyy-backend
         git clone --depth=1 https://github.com/compiler-research/cppyy-backend.git
         cd cppyy-backend
-        mkdir -p $env:CPPINTEROP_DIR\lib build && cd build
+        mkdir -p $env:CPPINTEROP_DIR\lib build
+        cd build
         # Install CppInterOp
-        (cd $env:CPPINTEROP_BUILD_DIR && cmake --build . --target install --parallel ${{ env.ncpus }} )
+        (cd $env:CPPINTEROP_BUILD_DIR
+        cmake --build . --target install --parallel ${{ env.ncpus }} )
         # Build and Install cppyy-backend
         cmake -DCppInterOp_DIR=$env:CPPINTEROP_DIR ..
         cmake --build . --parallel ${{ env.ncpus }}