fix: reorder variable assignments in addRepositoryWikiGitSubmodule method to fix tests on ci

Signed-off-by: Felipe Sayão Lobato Abreu <github@mentordosnerds.com>

Author: coisa

src/Command/SyncCommand.php

@@ -200,15 +200,15 @@ private function copyDependabotConfig(): void
      */
     private function addRepositoryWikiGitSubmodule(): void
     {
-        $repositoryUrl = $this->getGitRepositoryUrl();
-
-        $wikiRepoUrl = str_replace('.git', '.wiki.git', $repositoryUrl);
         $wikiSubmodulePath = parent::getConfigFile('.github/wiki', true);
 
         if ($this->filesystem->exists($wikiSubmodulePath)) {
             return;
         }
 
+        $repositoryUrl = $this->getGitRepositoryUrl();
+        $wikiRepoUrl = str_replace('.git', '.wiki.git', $repositoryUrl);
+
         $process = new Process([
             'git',
             'submodule',