deps: bump golang.org/x/sync from 0.15.0 to 0.16.0 (#3787)

Bumps [golang.org/x/sync](https://github.com/golang/sync) from 0.15.0 to 0.16.0.
- [Commits](golang/sync@v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sync
  dependency-version: 0.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]