chore: bump etcd-client from 0.8.3 to 0.8.4

Bumps [etcd-client](https://github.com/etcdv3/etcd-client) from 0.8.3 to 0.8.4.
- [Release notes](https://github.com/etcdv3/etcd-client/releases)
- [Commits](https://github.com/etcdv3/etcd-client/compare/0.8.3...v0.8.4)

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

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

Cargo.lock

@@ -1314,9 +1314,9 @@ dependencies = [
 
 [[package]]
 name = "etcd-client"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d267091320c099e5b53e81261e7fc01c5280d308da0444f7cd4ee94696569820"
+checksum = "585de5039d1ecce74773db49ba4e8107e42be7c2cd0b1a9e7fce27181db7b118"
 dependencies = [
  "http",
  "prost",
@@ -1800,13 +1800,13 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1323096b05d41827dadeaee54c9981958c0f94e670bc94ed80037d1a7b8b186b"
+checksum = "31f4c6746584866f0feabcc69893c5b51beef3831656a968ed7ae254cdc4fd03"
 dependencies = [
  "bytes",
  "fnv",
- "itoa 0.4.8",
+ "itoa 1.0.1",
 ]
 
 [[package]]

core/Cargo.toml

@@ -21,7 +21,7 @@ bs58 = "0.4.0"
 chrono = { version = "0.4.11", features = ["serde"] }
 crossbeam-channel = "0.5"
 dashmap = { version = "5.1.0", features = ["rayon", "raw-api"] }
-etcd-client = { version = "0.8.3", features = ["tls"]}
+etcd-client = { version = "0.8.4", features = ["tls"]}
 fs_extra = "1.2.0"
 histogram = "0.6.9"
 itertools = "0.10.3"