Replace .luacheckrc symlink with LINTER_RULES_PATH setting

Author: mfussenegger

.github/linters/.luacheckrc

@@ -19,5 +19,6 @@ jobs:
         uses: github/super-linter/slim@v4
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          LINTER_RULES_PATH: /
           VALIDATE_JSCPD: false
           VALIDATE_PYTHON_BLACK: false