build(deps): bump com.diffplug.spotless:spotless-plugin-gradle (#609)

Bumps the gradle-minor group in /build-logic with 1 update: [com.diffplug.spotless:spotless-plugin-gradle](https://github.com/diffplug/spotless).


Updates `com.diffplug.spotless:spotless-plugin-gradle` 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](diffplug/spotless@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
  dependency-group: gradle-minor
...

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Author: dependabot[bot]