build(deps): bump go.etcd.io/etcd/client/v3 from 3.5.14 to 3.5.15 (#3639)

Bumps [go.etcd.io/etcd/client/v3](https://github.com/etcd-io/etcd) from 3.5.14 to 3.5.15.
- [Release notes](https://github.com/etcd-io/etcd/releases)
- [Commits](https://github.com/etcd-io/etcd/compare/v3.5.14...v3.5.15

)

---
updated-dependencies:
- dependency-name: go.etcd.io/etcd/client/v3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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