Bump indexmap from 2.11.4 to 2.12.0 (#1222)

Bumps [indexmap](https://github.com/indexmap-rs/indexmap) from 2.11.4 to 2.12.0.
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](indexmap-rs/indexmap@2.11.4...2.12.0)

---
updated-dependencies:
- dependency-name: indexmap
  dependency-version: 2.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -33,7 +33,7 @@ futures-core = "0.3.31"
 heck = "0.5.0"
 http = "1.3.1"
 hyper = "1.7.0"
-indexmap = "2.11.4"
+indexmap = "2.12.0"
 openapiv3 = "2.2.0"
 percent-encoding = "2.3.2"
 proc-macro2 = "1.0.101"