Update dependency com.xwiki.ldapuserimport:application-ldapuserimport-ui to v1.7.3

Author: renovate-bot

pom.xml

@@ -38,7 +38,7 @@
   </issueManagement>
   <properties>
     <ldap.version>9.15.5</ldap.version>
-    <ldapuserimport.version>1.7.2</ldapuserimport.version>
+    <ldapuserimport.version>1.7.3</ldapuserimport.version>
     <licensing.version>1.30</licensing.version>
     <authservicebackport.version>1.1.1</authservicebackport.version>
     <!-- Revapi produces too many false positives that come from transitive dependencies in platform. -->