Update RAT plugin 0.5.2 -> 0.5.3: print violations to console if any

It simplifies analysis of CI logs
diff --git a/build.gradle.kts b/build.gradle.kts
index deb8857..e1870e5 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -87,6 +87,7 @@
 
 val rat by tasks.getting(org.nosphere.apache.rat.RatTask::class) {
     gitignore(gitProps)
+    verbose.set(true)
     // Note: patterns are in non-standard syntax for RAT, so we use exclude(..) instead of excludeFile
     exclude(rootDir.resolve(".ratignore").readLines())
 }
diff --git a/gradle.properties b/gradle.properties
index bdf9f32..0e3d45e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -39,7 +39,7 @@
 com.google.protobuf.version=0.8.10
 de.thetaphi.forbiddenapis.version=2.7
 org.jetbrains.gradle.plugin.idea-ext.version=0.5
-org.nosphere.apache.rat.version=0.5.2
+org.nosphere.apache.rat.version=0.5.3
 org.owasp.dependencycheck.version=5.2.2
 
 # TODO