Update oxsecurity/megalinter action to v9

Author: renovate[bot]

.github/workflows/mega-linter.yml

@@ -39,7 +39,7 @@ jobs:
         id: ml
         # You can override Mega-Linter flavor used to have faster performances
         # More info at https://megalinter.io/latest/flavors/
-        uses: oxsecurity/megalinter/flavors/javascript@v8
+        uses: oxsecurity/megalinter/flavors/javascript@v9
         env:
           # All available variables are described in documentation
           # https://megalinter.io/latest/config-file/