Upgrade from deprecated macos-13 to macos-latest in CI

Fixes: #590
* #590

Author: cclauss

.github/workflows/maven.yml

@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-13]
+        os: [ubuntu-latest, macos-latest]
         java: [ 8, 11, 17, 21, 25 ]
         experimental: [false]
         # Keep the same parameter order as the matrix above