chore(deps): update dependency com.diffplug.spotless to v8

Author: renovate[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ reflectionRemapper = "0.1.3"
 paperweight = "2.0.0-beta.18"
 runPaper = "2.3.1"
 shadow = "8.3.9"
-spotless = "7.2.1"
+spotless = "8.1.0"
 
 [libraries]
 junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit" }