Bump the cargo-dependencies group with 2 updates

Bumps the cargo-dependencies group with 2 updates: [metrics-exporter-prometheus](https://github.com/metrics-rs/metrics) and [tokio](https://github.com/tokio-rs/tokio).


Updates `metrics-exporter-prometheus` from 0.15.1 to 0.15.3
- [Changelog](https://github.com/metrics-rs/metrics/blob/main/release.toml)
- [Commits](metrics-rs/metrics@metrics-exporter-prometheus-v0.15.1...metrics-exporter-prometheus-v0.15.3)

Updates `tokio` from 1.38.0 to 1.39.2
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.38.0...tokio-1.39.2)

---
updated-dependencies:
- dependency-name: metrics-exporter-prometheus
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: cargo-dependencies
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo-dependencies
...

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

Cargo.toml

@@ -10,8 +10,8 @@ clap = { version = "~4.4.18", features = ["derive", "env"] }
 dapnet-api = "0.3.0"
 emfcamp-schedule-api = { git = "https://github.com/DanNixon/emfcamp-schedule-api", rev = "195b75df7bf6aceebbfa335a1be33a72186aae1c" }
 metrics = "0.23.0"
-metrics-exporter-prometheus = { version = "0.15.1", default-features = false, features = ["http-listener"] }
-tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread", "signal"] }
+metrics-exporter-prometheus = { version = "0.15.3", default-features = false, features = ["http-listener"] }
+tokio = { version = "1.39.2", features = ["macros", "rt-multi-thread", "signal"] }
 tracing = "0.1.40"
 tracing-subscriber = "0.3.18"
 url = "2.5.2"