Bump io.github.java-diff-utils:java-diff-utils from 4.12 to 4.15

Bumps [io.github.java-diff-utils:java-diff-utils](https://github.com/java-diff-utils/java-diff-utils) from 4.12 to 4.15.
- [Release notes](https://github.com/java-diff-utils/java-diff-utils/releases)
- [Changelog](https://github.com/java-diff-utils/java-diff-utils/blob/master/CHANGELOG.md)
- [Commits](java-diff-utils/java-diff-utils@java-diff-utils-parent-4.12...java-diff-utils-parent-4.15)

---
updated-dependencies:
- dependency-name: io.github.java-diff-utils:java-diff-utils
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ androidx-navigation-ui = { module = "androidx.navigation:navigation-ui-ktx", ver
 androidx-viewmodel = { module = "androidx.lifecycle:lifecycle-viewmodel-ktx", version.ref = "androidx-lifecycle" }
 androidx-test-junit = "androidx.test.ext:junit:1.2.1"
 androidx-test-espresso = "androidx.test.espresso:espresso-core:3.6.1"
-diffUtils = { module = "io.github.java-diff-utils:java-diff-utils", version = "4.12" }
+diffUtils = { module = "io.github.java-diff-utils:java-diff-utils", version = "4.15" }
 google-material = "com.google.android.material:material:1.12.0"
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
 moshi-kotlin = { module = "com.squareup.moshi:moshi-kotlin", version.ref = "moshi" }