docs: Add release notes for v6.0.0a16

DIRACGrid CI · DIRACGrid CI · commit 6530201c785c · 2025-06-02T15:20:26.000Z
diff --git a/release.notes b/release.notes
@@ -1,3 +1,6 @@
+[v6.0.0a16]
+
+
 [v6.0.0a15]
 
 FIX: (#785) Retrintroduce WMSAdministratorClient for JobMonioring
