chore: bump etcd-client from 0.8.1 to 0.8.2 (#21825)

Bumps [etcd-client](https://github.com/etcdv3/etcd-client) from 0.8.1 to 0.8.2.
- [Release notes](https://github.com/etcdv3/etcd-client/releases)
- [Commits](https://github.com/etcdv3/etcd-client/compare/0.8.1...0.8.2)

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

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

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

Cargo.lock

@@ -1370,9 +1370,9 @@ dependencies = [
 
 [[package]]
 name = "etcd-client"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "641855f8c930bac225538d031705a243d3ce6c4d22078345c16ff2036ee58297"
+checksum = "c3bfae4cb9cd8c3c2a552d45e155cafd079f385a3b9421b9a010878f44531f1e"
 dependencies = [
  "http",
  "prost",