chore(deps): bump com.diffplug.spotless from 8.6.0 to 8.7.0

Bumps com.diffplug.spotless from 8.6.0 to 8.7.0.

---
updated-dependencies:
- dependency-name: com.diffplug.spotless
  dependency-version: 8.7.0
  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

@@ -28,7 +28,7 @@ kotlinxDateTime = "0.8.0"
 kotlinxSerialization = "1.10.0"
 kover = "0.9.8"
 mavenPublish = "0.37.0"
-spotlessPlugin = "8.6.0"
+spotlessPlugin = "8.7.0"
 turbine = "1.2.1"
 
 [plugins]