build(deps): bump indexmap from 1.7.0 to 1.8.0

Bumps [indexmap](https://github.com/bluss/indexmap) from 1.7.0 to 1.8.0.
- [Release notes](https://github.com/bluss/indexmap/releases)
- [Changelog](https://github.com/bluss/indexmap/blob/master/RELEASES.rst)
- [Commits](https://github.com/bluss/indexmap/compare/1.7.0...1.8.0)

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

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

Cargo.lock

@@ -1685,9 +1685,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
 dependencies = [
  "autocfg",
  "hashbrown",

core/Cargo.toml

@@ -13,7 +13,7 @@ fnv = "1.0.7"
 gc-arena = { git = "https://github.com/ruffle-rs/gc-arena" }
 generational-arena = "0.2.8"
 gif = "0.11.3"
-indexmap = "1.6.2"
+indexmap = "1.8.0"
 log = "0.4"
 minimp3 = { version = "0.5.1", optional = true }
 png = { version = "0.17.2" }