fix: add missing comma

Author: TheOrangePuff

pipe/pipe.py

@@ -137,7 +137,7 @@ def filter_paths(path):
                          "-d",
                          "memory_limit=512M",
                          "--report=junit",
-                         "--report-file=test-results/phpcs.xml"
+                         "--report-file=test-results/phpcs.xml",
                          f"--standard={self.standards}"
                          ] + changed_files