Bump com.diffplug.spotless:spotless-plugin-gradle from 8.6.0 to 8.7.0 (#1704)

Bumps [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless) from 8.6.0 to 8.7.0.
- [Release notes](https://github.com/diffplug/spotless/releases)
- [Changelog](https://github.com/diffplug/spotless/blob/main/CHANGES.md)
- [Commits](https://github.com/diffplug/spotless/compare/gradle/8.6.0...gradle/8.7.0)

---
updated-dependencies:
- dependency-name: com.diffplug.spotless:spotless-plugin-gradle
  dependency-version: 8.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

gradle/libs.versions.toml

@@ -61,7 +61,7 @@ paguro = "3.10.3"
 shadowPlugin = "9.4.2"
 slf4j = "2.0.18"
 snakeYaml = "3.0.1"
-spotlessPlugin = "8.6.0"
+spotlessPlugin = "8.7.0"
 wiremock = "3.13.2"
 
 [libraries] # ordered alphabetically