Bump com.ibm.icu:icu4j from 75.1 to 76.1

Bumps [com.ibm.icu:icu4j](https://github.com/unicode-org/icu) from 75.1 to 76.1.
- [Release notes](https://github.com/unicode-org/icu/releases)
- [Commits](https://github.com/unicode-org/icu/commits)

---
updated-dependencies:
- dependency-name: com.ibm.icu:icu4j
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -16,7 +16,7 @@ jetbrains-annotations = { module = "org.jetbrains:annotations", version = "26.0.
 snakeyaml = { module = "org.snakeyaml:snakeyaml-engine", version = "2.8" }
 gson = { module = "com.google.code.gson:gson", version = "2.11.0" }
 jimfs = { module = "com.google.jimfs:jimfs", version = "1.3.0" }
-icu4j = { module = "com.ibm.icu:icu4j", version = "75.1" }
+icu4j = { module = "com.ibm.icu:icu4j", version = "76.1" }
 # test dependencies
 spock-core = { module = "org.spockframework:spock-core", version = "2.4-M4-groovy-4.0" }
 awaitility = { module = "org.awaitility:awaitility", version = "4.2.2" }