chore(deps): update oxsecurity/megalinter action to v8.4.0

Author: renovate[bot]

.github/workflows/mega-linter.yml

@@ -39,7 +39,7 @@ jobs:
         id: ml
         # You can override MegaLinter flavor used to have faster performances
         # More info at https://megalinter.github.io/flavors/
-        uses: oxsecurity/megalinter/flavors/dotnet@v8.3.0
+        uses: oxsecurity/megalinter/flavors/dotnet@v8.4.0
         env:
           # All available variables are described in documentation
           # https://megalinter.github.io/configuration/