Consider branch 6.0 as maintained

Author: nicolas-grekas

src/Service/SymfonyVersionProvider.php

@@ -49,16 +49,16 @@ public function getCurrentVersion(): string
     /**
      * @throws \RuntimeException
      */
-    public function getSupportedVersions(): array
+    public function getMaintainedVersions(): array
     {
         $response = $this->httpClient->request('GET', 'https://symfony.com/releases.json');
         $data = $response->toArray(true);
-        $versions = $data['supported_versions'] ?? null;
+        $versions = $data['maintained_versions'] ?? null;
 
         if (is_array($versions) && count($versions) > 0) {
             return $versions;
         }
 
-        throw new \RuntimeException('Could not fetch supported versions');
+        throw new \RuntimeException('Could not fetch maintained versions');
     }
 }

src/Subscriber/UnsupportedBranchSubscriber.php

@@ -41,7 +41,7 @@ public function onPullRequest(GitHubEvent $event)
         }
 
         try {
-            $validBranches = $this->symfonyVersionProvider->getSupportedVersions();
+            $validBranches = $this->symfonyVersionProvider->getMaintainedVersions();
         } catch (\Throwable $e) {
             $this->logger->error('Failed to get valid branches', ['exception' => $e]);