chore(deps): Update dependency com.diffplug.spotless:spotless-plugin-gradle to v7

Author: renovate[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ nexus-publish = { id = "io.github.gradle-nexus.publish-plugin", version.ref = "n
 [versions]
 indra = "3.1.3"
 gradleErrorprone = "4.1.0"
-spotless = "6.25.0"
+spotless = "7.0.3"
 nexus-publish = "2.0.0"
 
 [libraries]