Bump metrics-exporter-prometheus from 0.17.2 to 0.18.0 (#7)

Bumps [metrics-exporter-prometheus](https://github.com/metrics-rs/metrics) from 0.17.2 to 0.18.0.
- [Changelog](https://github.com/metrics-rs/metrics/blob/main/release.toml)
- [Commits](metrics-rs/metrics@metrics-exporter-prometheus-v0.17.2...metrics-exporter-prometheus-v0.18.0)

---
updated-dependencies:
- dependency-name: metrics-exporter-prometheus
  dependency-version: 0.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -31,7 +31,7 @@ http-cache-semantics        = { version = "2.1" }
 httpdate                    = { version = "1.0" }
 jsonwebtoken                = { version = "10.2", features = ["aws_lc_rs"] }
 metrics                     = { version = "0.24" }
-metrics-exporter-prometheus = { version = "0.17" }
+metrics-exporter-prometheus = { version = "0.18" }
 rand                        = { version = "0.9", features = ["small_rng", "std"] }
 redis                       = { version = "0.32", optional = true, default-features = false, features = ["aio", "tokio-comp"] }
 reqwest                     = { version = "0.12", default-features = false, features = ["http2", "json", "rustls-tls", "stream"] }