gateway: bump hadolint/hadolint-action from 3.1.0 to 3.2.0

Bumps [hadolint/hadolint-action](https://github.com/hadolint/hadolint-action) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/hadolint/hadolint-action/releases)
- [Changelog](https://github.com/hadolint/hadolint-action/blob/master/.releaserc)
- [Commits](hadolint/hadolint-action@54c9adb...3fc49fb)

---
updated-dependencies:
- dependency-name: hadolint/hadolint-action
  dependency-version: 3.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/dummy.yml

@@ -79,7 +79,7 @@ jobs:
         if: false
       - uses: gradle/wrapper-validation-action@f9c9c575b8b21b6485636a91ffecd10e558c62f6  # v3.5.0
         if: false
-      - uses: hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf  # v3.1.0
+      - uses: hadolint/hadolint-action@3fc49fb50d59c6ab7917a2e4195dba633e515b29  # v3.2.0
         if: false
       - uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd  # v3
         if: false