chore(deps): bump hadolint/hadolint-action from 1.6.0 to 2.1.0

Bumps [hadolint/hadolint-action](https://github.com/hadolint/hadolint-action) from 1.6.0 to 2.1.0.
- [Release notes](https://github.com/hadolint/hadolint-action/releases)
- [Changelog](https://github.com/hadolint/hadolint-action/blob/master/.releaserc)
- [Commits](d7b3858233...f988afea3d)

---
updated-dependencies:
- dependency-name: hadolint/hadolint-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/lint.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Clone
         uses: actions/checkout@v2
       - name: Run hadolint
-        uses: hadolint/hadolint-action@d7b38582334d9ac11c12021c16f21d63015fa250
+        uses: hadolint/hadolint-action@f988afea3da57ee48710a9795b6bb677cc901183
         # v1.6.0 => d7b38582334d9ac11c12021c16f21d63015fa250
 
   markdown-lint: