chore(deps): bump socket2 from 0.4.7 to 0.5.3

Bumps [socket2](https://github.com/rust-lang/socket2) from 0.4.7 to 0.5.3.
- [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)

---
updated-dependencies:
- dependency-name: socket2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -34,7 +34,7 @@ hyper = { version = "0.14", features = ["full"] }
 phf = { version = "0.11.1", features = ["macros"] }
 exitcode = "1.1.2"
 futures = "0.3"
-socket2 = { version = "0.4.7", features = ["all"] }
+socket2 = { version = "0.5.3", features = ["all"] }
 nix = "0.26.2"
 atomic_enum = "0.2.0"
 postgres-protocol = "0.6.5"