Update dependency com.diffplug.spotless to v8.2.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ mockk = "1.14.9"
 nexus-publish = "2.0.0"
 spring-ai = "1.0.3"
 slf4j = "2.0.17"
-spotless = "8.1.0"
+spotless = "8.2.1"
 openai-kotlin = "4.0.1"
 
 [libraries]