Update maven.yml

Author: shannah

.github/workflows/maven.yml

@@ -2,7 +2,7 @@ name: Java CI with Maven
 
 on: [push, pull_request]
 env:
-  DEVELOPER_DIR: /Applications/Xcode_11.2.app/Contents/Developer
+  DEVELOPER_DIR: /Applications/Xcode_13.2.app/Contents/Developer
 jobs:
   build:
     runs-on: macos-latest