Bump spotless from 8.2.0 to 8.5.1

Bumps `spotless` from 8.2.0 to 8.5.1.

Updates `com.diffplug.spotless:spotless-plugin-gradle` from 8.2.0 to 8.5.1
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@gradle/8.2.0...gradle/8.5.1)

Updates `com.diffplug.spotless` from 8.2.0 to 8.5.1

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-plugin-gradle
  dependency-version: 8.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.diffplug.spotless
  dependency-version: 8.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ lifecycle-livedata-ktx = "2.10.0"
 lifecycle-viewmodel-ktx = "2.10.0"
 navigation-fragment-ktx = "2.9.7"
 navigation-ui-ktx = "2.9.7"
-spotless = "8.2.0"
+spotless = "8.5.1"
 activity-compose = "1.12.3"
 compose-bom = "2026.01.01"
 opentelemetry-sdk = "1.58.0"