Update super-linter/super-linter action to v8.4.0

Author: renovate[bot]

.github/workflows/lint.yml

@@ -26,7 +26,7 @@ jobs:
           persist-credentials: false
 
       - name: Super-linter
-        uses: super-linter/super-linter@ffde3b2b33b745cb612d787f669ef9442b1339a6 # v8.1.0
+        uses: super-linter/super-linter@12562e48d7059cf666c43a4ecb0d3b5a2b31bd9e # v8.4.0
         env:
           DEFAULT_BRANCH: main
           VALIDATE_SHELL_SHFMT: false