Mark Pulsar Manager as no longer maintained and unsupported

.asf.yaml

@@ -18,27 +18,16 @@
 #
 
 github:
-  description: "Apache Pulsar Manager"
-  homepage: https://pulsar.apache.org/
+  description: "Apache Pulsar Manager (no longer maintained, not recommended for use). For alternatives see https://pulsar.apache.org/docs/administration-ui"
+  homepage: https://pulsar.apache.org/docs/administration-ui
   labels:
-    - pulsar
-    - pubsub
-    - messaging
-    - streaming
-    - queuing
-    - event-streaming
-    - apache-pulsar
-    - admin-dashboard
-    - vuejs
-    - pulsar-ui
-    - messaging
+    - unmaintained
+    - deprecated
   features:
-    # Enable wiki for documentation
-    wiki: true
-    # Enable issues management
-    issues: true
-    # Enable projects for project management boards
-    projects: true
+    # The project is no longer maintained
+    wiki: false
+    issues: false
+    projects: false
   enabled_merge_buttons:
     # enable squash button:
     squash:  true

.github/workflows/gradle.yml

@@ -17,11 +17,9 @@
 
 name: Java CI
 
+# Pulsar Manager is no longer maintained, so CI only runs when started manually.
 on:
-  push:
-    branches: [master]
-  pull_request:
-    branches: [master]
+  workflow_dispatch:
 
 jobs:
   build: