chore(deps): update hadolint/hadolint-action action to v2.1.0

Author: renovate[bot]

.github/workflows/hadolint.yml

@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: hadolint/hadolint-action@v2.0.0
+      - uses: hadolint/hadolint-action@v2.1.0
         with:
           dockerfile: Dockerfile