chore: bump etcd-client from 0.7.1 to 0.7.2 (#19661)

Bumps [etcd-client](https://github.com/etcdv3/etcd-client) from 0.7.1 to 0.7.2.
- [Release notes](https://github.com/etcdv3/etcd-client/releases)
- [Commits](https://github.com/etcdv3/etcd-client/compare/0.7.1...0.7.2)

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

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

core/Cargo.toml

@@ -25,7 +25,7 @@ chrono = { version = "0.4.11", features = ["serde"] }
 crossbeam-channel = "0.5"
 dashmap = { version = "4.0.2", features = ["rayon", "raw-api"] }
 ed25519-dalek = "=1.0.1"
-etcd-client = { version = "0.7.1", features = ["tls"]}
+etcd-client = { version = "0.7.2", features = ["tls"]}
 fs_extra = "1.2.0"
 flate2 = "1.0"
 indexmap = { version = "1.7", features = ["rayon"] }