chore(deps): update socket2 requirement from 0.4.7 to 0.5.1 (#1032)

Updates the requirements on [socket2](https://github.com/rust-lang/socket2) to permit the latest version.
- [Release notes](https://github.com/rust-lang/socket2/releases)
- [Changelog](https://github.com/rust-lang/socket2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/socket2/commits/v0.5.1)

---
updated-dependencies:
- dependency-name: socket2
  dependency-type: direct:production
...

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

server/Cargo.toml

@@ -31,4 +31,4 @@ jsonrpsee-test-utils = { path = "../test-utils" }
 rand = "0.8"
 tracing-subscriber = { version = "0.3.3", features = ["env-filter"] }
 tower = { version = "0.4.13", features = ["timeout"] }
-socket2 = "0.4.7"
+socket2 = "0.5.1"