build(deps): Bump golangci/golangci-lint-action from 6 to 8

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from 6 to 8.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](golangci/golangci-lint-action@v6...v8)

---
updated-dependencies:
- dependency-name: golangci/golangci-lint-action
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -59,7 +59,7 @@ jobs:
           just --timestamp _lint
 
       - name: More Go lint
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@v8
         with:
           # keep in sync with hack/tools.just
           version: v1.64.8