Bump indexmap from 2.3.0 to 2.4.0 (#488)

Bumps [indexmap](https://github.com/indexmap-rs/indexmap) from 2.3.0 to 2.4.0.
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/master/RELEASES.md)
- [Commits](indexmap-rs/indexmap@2.3.0...2.4.0)

---
updated-dependencies:
- dependency-name: indexmap
  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

@@ -73,7 +73,7 @@ features = ["tokio"]
 version = "0.3.3"
 
 [dependencies.indexmap]
-version = "2.3.0"
+version = "2.4.0"
 features = ["serde"]
 
 [dependencies.log]