Added findStaleIssues to the IsssueApi

Author: Nyholm

src/Api/Issue/GithubIssueApi.php

@@ -75,7 +75,7 @@ public function commentOnIssue(Repository $repository, $issueNumber, string $com
         );
     }
 
-    public function findStaleIssues(Repository $repository, \DateTimeImmutable $noUpdateAfter)
+    public function findStaleIssues(Repository $repository, \DateTimeImmutable $noUpdateAfter): array
     {
         $issues = $this->searchApi->issues(sprintf('repo:%s is:issue -linked:pr -label:"Keep open" is:open updated:<%s', $repository->getFullName(), $noUpdateAfter->format('Y-m-d')));
 

src/Api/Issue/IssueApi.php

@@ -23,6 +23,8 @@ public function commentOnIssue(Repository $repository, $issueNumber, string $com
 
     public function lastCommentWasMadeByBot(Repository $repository, $number): bool;
 
+    public function findStaleIssues(Repository $repository, \DateTimeImmutable $noUpdateAfter): array;
+
     /**
      * Close an issue or a pull request.
      */

src/Api/Issue/NullIssueApi.php

@@ -24,6 +24,11 @@ public function lastCommentWasMadeByBot(Repository $repository, $number): bool
         return false;
     }
 
+    public function findStaleIssues(Repository $repository, \DateTimeImmutable $noUpdateAfter): array
+    {
+        return [];
+    }
+
     public function close(Repository $repository, $issueNumber)
     {
     }