Update Constants.java with latest version

Co-authored-by: plup2 <pierre.lupien@hrsdc-rhdcc.gc.ca>

Author: ahmad-shahid

gocwebtemplate-core/gocwebtemplate-core-base/src/main/java/goc/webtemplate/Constants.java

@@ -13,7 +13,7 @@ public abstract class Constants {
 
     public static final String CACHE_KEY_STATICFILES_PREFIX = "GoC.Template.CacheKey";
 
-    public static final String WEB_TEMPLATE_DISTRIBUTION_VERSION = "2.5.1";
+    public static final String WEB_TEMPLATE_DISTRIBUTION_VERSION = "2.6.0";
 
     public static final String CDTS_DEFAULT_VERSION = "v4_0_47";