fix workflow

Author: mydea

.github/workflows/flaky-test-detector.yml

@@ -78,4 +78,4 @@ jobs:
         env:
           CHANGED_TEST_PATHS: ${{ steps.changed.outputs.browser_integration_files }}
           # Run 100 times when detecting changed test(s), else run all tests 5x
-          TEST_RUN_COUNT: ${{ steps.changed.outputs.browser_integration == 'true' && 100 || 5x }}
+          TEST_RUN_COUNT: ${{ steps.changed.outputs.browser_integration == 'true' && 100 || 5 }}