Update github/super-linter action to v6

Author: renovate[bot]

.github/workflows/linter.yml

@@ -45,7 +45,7 @@ jobs:
       # Run Linter against code base #
       ################################
       - name: Lint Code Base
-        uses: github/super-linter@v5
+        uses: github/super-linter@v6
         env:
           VALIDATE_ALL_CODEBASE: false
           DEFAULT_BRANCH: main