Bump com.diffplug.spotless:spotless-plugin-gradle from 8.1.0 to 8.2.0

Bumps [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless) from 8.1.0 to 8.2.0.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](diffplug/spotless@gradle/8.1.0...gradle/8.2.0)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-plugin-gradle
  dependency-version: 8.2.0
  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

@@ -19,7 +19,7 @@ junit-bom = { module = "org.junit:junit-bom", version.ref = "junit" }
 maven-plugin = { module = "com.vanniktech:gradle-maven-publish-plugin", version.ref = "maven-publish" }
 nullaway = { module = "com.uber.nullaway:nullaway", version = "0.13.0" }
 protobuf-java = { module = "com.google.protobuf:protobuf-java", version.ref = "protobuf" }
-spotless = { module = "com.diffplug.spotless:spotless-plugin-gradle", version = "8.1.0" }
+spotless = { module = "com.diffplug.spotless:spotless-plugin-gradle", version = "8.2.0" }
 
 [plugins]
 errorprone = { id = "net.ltgt.errorprone", version = "4.4.0" }