Bump out dogfooding version of Spotless to fix JRE parsing.

Author: nedtwigg

settings.gradle

@@ -3,7 +3,7 @@ pluginManagement {
 		// We are stuck dogfooding at 5.5.0 for a very strange reason:
 		//   5.8.0+ Cannot get property 'versionLast' on null object @ spotless-freshmark.gradle:58
 		//   5.6.0+ Tried to add format named 'freshmark' of type class @ spotless-freshmark.gradle:55
-		id 'com.diffplug.spotless'                 version '5.5.0'
+		id 'com.diffplug.spotless'                 version '5.5.1'
 		// https://github.com/diffplug/goomph/blob/main/CHANGES.md
 		id 'com.diffplug.eclipse.resourcefilters'  version '3.27.0'
 		// https://plugins.gradle.org/plugin/com.gradle.plugin-publish