Adds filter value to workflow output

Adds the filter value to the workflow output, providing more visibility into the test selection process during CI runs.
This helps in debugging and verifying the correct test subset is being executed.

temp/playwright-test.yml

@@ -138,6 +138,7 @@ jobs:
         echo "No filter. Running all test cases..."
         FILTER=""
       fi
+      echo "Filter value: $FILTER"
       
       echo "Line 142 targetUrl: ${{ parameters.targetUrl }}"
       TARGET_URL=${{ parameters.targetUrl }}