Merge pull request #5461 from mruby/dependabot/github_actions/github/super-linter-4.0.2

build(deps): bump github/super-linter from 3.17.1 to 4.0.2

.github/workflows/linter.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2.3.4
-      - uses: github/super-linter@v3.17.1
+      - uses: github/super-linter@v4.0.2
         env:
           ERROR_ON_MISSING_EXEC_BIT: true
           VALIDATE_BASH: true