CI: run tests only if the platform matches

Author: robUx4

.github/workflows/windows.yaml

@@ -34,7 +34,5 @@ jobs:
         run: cmake --install _build --config ${{ matrix.config }} --prefix ${GITHUB_WORKSPACE}/_built
 
       - name: Run tests
-        run: |
-          if ($env:PROCESSOR_ARCHITECTURE -match "${{ matrix.arch.env }}") {
-            ctest --test-dir _build --build-config ${{ matrix.config }}
-          }
+        if: $env:PROCESSOR_ARCHITECTURE -match "${{ matrix.arch.env }}"
+        run: ctest --test-dir _build --build-config ${{ matrix.config }}