Oh snap - remove SNAPSHOT-SNAPSHOT to just a single SNAPSHOT

Author: jodygarnett

geowebcache/pom.xml

@@ -51,7 +51,7 @@
   </distributionManagement>
 
   <properties>
-    <gt.version>32-SNAPSHOT-SNAPSHOT</gt.version>
+    <gt.version>32-SNAPSHOT</gt.version>
     <jts.version>1.20.0</jts.version>
     <jaiext.version>1.1.27</jaiext.version>
     <spring.version>5.3.39</spring.version>