XWIKI-16192: Refactor links to support properly backlinks in a farm

* solr became much more core now that anything that manipulate backlinks depends on it

xwiki-platform-tools/xwiki-platform-tool-packager-plugin/src/main/java/org/xwiki/tool/packager/PackageMojo.java

@@ -758,6 +758,10 @@ private Set<Artifact> getMandatoryJarArtifacts() throws MojoExecutionException
         mandatoryTopLevelArtifacts.add(this.repositorySystem.createArtifact("org.xwiki.platform",
             "xwiki-platform-user-script", getXWikiPlatformVersion(), null, "jar"));
 
+        // Refactoring operation but also anything that manipulate document backlink need Solr
+        mandatoryTopLevelArtifacts.add(this.repositorySystem.createArtifact("org.xwiki.platform",
+            "xwiki-platform-search-solr-api", getXWikiPlatformVersion(), null, "jar"));
+
         return mandatoryTopLevelArtifacts;
     }