Merge pull request #506 from greg0ire/update-branch-metadata

chore: update branch metadata

Author: SenseException

.symfony.bundle.yaml

@@ -5,8 +5,9 @@ branches:
     - "3.6.x"
     - "3.7.x"
     - "4.0.x"
+    - "4.1.x"
 maintained_branches:
     - "3.7.x"
-    - "4.0.x"
+    - "4.1.x"
 doc_dir: "docs/"
-dev_branch: "4.0.x"
+dev_branch: "4.1.x"