Reduce redundant workflow runs

.github/workflows/android-tv-apk.yml

@@ -2,10 +2,17 @@ name: Android TV APK
 
 on:
   pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - ready_for_review
     paths:
       - "android-tv/**"
       - ".github/workflows/android-tv-apk.yml"
   push:
+    branches:
+      - main
     paths:
       - "android-tv/**"
       - ".github/workflows/android-tv-apk.yml"
@@ -27,8 +34,13 @@ on:
 permissions:
   contents: write
 
+concurrency:
+  group: android-tv-apk-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build_android_tv_apk:
+    if: ${{ github.event_name != 'pull_request' || !github.event.pull_request.draft }}
     runs-on: ubuntu-latest
     env:
       KVIDEO_URL: ${{ github.event_name == 'workflow_dispatch' && inputs.kvideo_url || '' }}