Bump icu_casemap from 1.3.0 to 1.3.1 (#3346)

Bumps [icu_casemap](https://github.com/unicode-org/icu4x) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/unicode-org/icu4x/releases)
- [Changelog](https://github.com/unicode-org/icu4x/blob/main/CHANGELOG.md)
- [Commits](https://github.com/unicode-org/icu4x/commits)

---
updated-dependencies:
- dependency-name: icu_casemap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -1320,9 +1320,9 @@ dependencies = [
 
 [[package]]
 name = "icu_casemap"
-version = "1.3.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3788cfe71eea4bbddc117bc71209abfd9fe7bc2ccdbcc234310969de8de80cb"
+checksum = "67ce60d91773b45daec1b4d4bfcafae56b6170d197090cbf2f6356c6d2b56b7e"
 dependencies = [
  "databake",
  "displaydoc",

Cargo.toml

@@ -74,7 +74,7 @@ icu_calendar = { version = "~1.3.1", default-features = false }
 icu_collator = { version = "~1.3.0", default-features = false }
 icu_plurals = { version = "~1.3.0", default-features = false }
 icu_list = { version = "~1.3.0", default-features = false }
-icu_casemap = { version = "~1.3.0", default-features = false }
+icu_casemap = { version = "~1.3.1", default-features = false }
 icu_segmenter = { version = "~1.3.0", default-features = false }
 icu_datagen = { version = "~1.3.0", default-features = false }
 icu_provider_adapters = { version = "~1.3.0", default-features = false }