docs: soften exitLiveActivity deprecation message

Author: fadi-george

.github/workflows/create-release-pr.yml

@@ -159,7 +159,7 @@ jobs:
           echo "✓ Updated pubspec.yaml version to ${NEW_VERSION}"
 
           # Update podspec version
-          sed -i '' "s|s.version          = '[^']*'|s.version          = '${NEW_VERSION}'|" ios/onesignal_flutter.podspec
+          sed -i '' "s|s\.version[[:space:]]*=[[:space:]]*'[^']*'|s.version          = '${NEW_VERSION}'|" ios/onesignal_flutter.podspec
           echo "✓ Updated ios/onesignal_flutter.podspec version to ${NEW_VERSION}"
 
           # Update android build.gradle version

lib/src/liveactivities.dart

@@ -20,7 +20,7 @@ class OneSignalLiveActivities {
   ///
   /// Only applies to iOS.
   @Deprecated(
-      'This API is no longer supported and will be removed in a future release.')
+      'Currently unsupported, avoid using this method.')
   Future<void> exitLiveActivity(String activityId) async {
     if (defaultTargetPlatform == TargetPlatform.iOS) {
       return await _channel.invokeMethod(