skip-tests: remove spaces

Author: bitterpanda63

.github/workflows/qa-tests.yml

@@ -50,4 +50,4 @@ jobs:
           dockerfile_path: ./zen-demo-python/Dockerfile
           app_port: 8080
           sleep_before_test: 10
-          skip_tests: test_stored_ssrf, test_bypassed_ip_for_geo_blocking, test_demo_apps_generic_tests, test_path_traversal, test_wave_attack
+          skip_tests: test_stored_ssrf,test_bypassed_ip_for_geo_blocking,test_demo_apps_generic_tests,test_path_traversal,test_wave_attack