chore: [CI] Treat CocoaPods Trunk duplicate pushes as a no-op (#1686)

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: nan-li

.github/workflows/publish-release.yml

@@ -83,15 +83,19 @@ jobs:
           echo "Validating OneSignalXCFramework.podspec..."
           pod spec lint OneSignalXCFramework.podspec --allow-warnings
 
-      - name: Publish OneSignal.podspec to CocoaPods Trunk
+      - name: Publish podspecs to CocoaPods Trunk
         run: |
-          echo "Publishing OneSignal.podspec to CocoaPods Trunk..."
-          pod trunk push OneSignal.podspec --allow-warnings
-
-      - name: Publish OneSignalXCFramework.podspec to CocoaPods Trunk
-        run: |
-          echo "Publishing OneSignalXCFramework.podspec to CocoaPods Trunk..."
-          pod trunk push OneSignalXCFramework.podspec --allow-warnings
+          push_podspec() {
+            local podspec="$1"
+            echo "Publishing $podspec to CocoaPods Trunk..."
+            OUTPUT=$(pod trunk push "$podspec" --allow-warnings 2>&1) && { echo "$OUTPUT"; return; }
+            echo "$OUTPUT"
+            echo "$OUTPUT" | grep -q "Unable to accept duplicate entry" || exit 1
+            echo "::warning::$podspec already on Trunk (duplicate) — skipped"
+          }
+
+          push_podspec OneSignal.podspec
+          push_podspec OneSignalXCFramework.podspec
 
       - name: ✅ CocoaPods Published
         run: |