Update time requirement from =0.3.23 to =0.3.30

Updates the requirements on [time](https://github.com/time-rs/time) to permit the latest version.
- [Release notes](https://github.com/time-rs/time/releases)
- [Changelog](https://github.com/time-rs/time/blob/main/CHANGELOG.md)
- [Commits](time-rs/time@v0.3.23...v0.3.30)

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

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

neqo-common/Cargo.toml

@@ -12,7 +12,7 @@ log = {version = "0.4.0", default-features = false}
 env_logger = {version = "0.10", default-features = false}
 lazy_static = "1.3.0"
 qlog = "0.9.0"
-time = {version = "=0.3.23", features = ["formatting"]}
+time = {version = "=0.3.30", features = ["formatting"]}
 
 [features]
 deny-warnings = []