build(deps): bump indexmap from 2.7.1 to 2.9.0

Bumps [indexmap](https://github.com/indexmap-rs/indexmap) from 2.7.1 to 2.9.0.
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](https://github.com/indexmap-rs/indexmap/compare/2.7.1...2.9.0)

---
updated-dependencies:
- dependency-name: indexmap
  dependency-version: 2.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -163,7 +163,7 @@ dependencies = [
  "hex",
  "home",
  "ignore",
- "indexmap 2.7.1",
+ "indexmap 2.9.0",
  "itertools",
  "lenient_semver",
  "log",
@@ -926,9 +926,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.7.1"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9c992b02b5b4c94ea26e32fe5bccb7aa7d9f390ab5c1221ff895bc7ea8b652"
+checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
 dependencies = [
  "equivalent",
  "hashbrown 0.15.2",
@@ -1216,7 +1216,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3672b37090dbd86368a4145bc067582552b29c27377cad4e0a306c97f9bd7772"
 dependencies = [
  "fixedbitset",
- "indexmap 2.7.1",
+ "indexmap 2.9.0",
 ]
 
 [[package]]
@@ -1783,7 +1783,7 @@ version = "0.22.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02a8b472d1a3d7c18e2d61a489aee3453fd9031c33e4f55bd533f4a7adca1bee"
 dependencies = [
- "indexmap 2.7.1",
+ "indexmap 2.9.0",
  "serde",
  "serde_spanned",
  "toml_datetime",
@@ -2276,7 +2276,7 @@ dependencies = [
  "crossbeam-utils",
  "displaydoc",
  "flate2",
- "indexmap 2.7.1",
+ "indexmap 2.9.0",
  "memchr",
  "thiserror 2.0.11",
  "time",