Update oxsecurity/megalinter action to v9

Author: renovate[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         id: ml
         # You can override MegaLinter flavor used to have faster performances
         # More info at https://megalinter.io/flavors/
-        uses: oxsecurity/megalinter/flavors/go@v8
+        uses: oxsecurity/megalinter/flavors/go@v9
         env:
           # All available variables are described in documentation
           # https://megalinter.io/config-file/