chore(deps): bump metrics-exporter-prometheus from 0.18.1 to 0.18.3 (#1434)

Bumps [metrics-exporter-prometheus](https://github.com/metrics-rs/metrics) from 0.18.1 to 0.18.3.
- [Changelog](https://github.com/metrics-rs/metrics/blob/main/release.toml)
- [Commits](metrics-rs/metrics@metrics-exporter-prometheus-v0.18.1...metrics-exporter-prometheus-v0.18.3)

---
updated-dependencies:
- dependency-name: metrics-exporter-prometheus
  dependency-version: 0.18.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Cargo.lock

@@ -103,7 +103,7 @@ tokio = { version = "1.52.1", features = ["full"] }
 criterion = "0.8.2"
 tracing-chrome = "0.7.2"
 metrics-util = "0.20.3"
-metrics-exporter-prometheus = { version = "0.18.1", default-features = false }
+metrics-exporter-prometheus = { version = "0.18.3", default-features = false }
 serde_json = "1.0"
 hyperlight-component-macro = { workspace = true }