chore(deps): update socket2 requirement from 0.4 to 0.5

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](rust-lang/socket2@v0.4.0...v0.5.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

phantun/Cargo.toml

@@ -12,7 +12,7 @@ Layer 3 & Layer 4 (NAPT) firewalls/NATs.
 """
 [dependencies]
 clap = { version = "4.0", features = ["cargo"] }
-socket2 = { version = "0.4", features = ["all"] }
+socket2 = { version = "0.5", features = ["all"] }
 fake-tcp = { path = "../fake-tcp", version = "0.5" }
 tokio = { version = "1.14", features = ["full"] }
 tokio-util = "0.7"