Fix gt.version = 33-SNAPSHOT-SNAPSHOT/33-SNAPSHOT, there is a problem with the release script

Author: groldan

geowebcache/pom.xml

@@ -51,7 +51,7 @@
   </distributionManagement>
 
   <properties>
-    <gt.version>33-SNAPSHOT-SNAPSHOT</gt.version>
+    <gt.version>33-SNAPSHOT</gt.version>
     <jts.version>1.20.0</jts.version>
     <jaiext.version>1.1.31</jaiext.version>
     <spring.version>5.3.39</spring.version>