Return stream as an AsyncSequence

Author: peterfriese

FirebaseRemoteConfig/Swift/RemoteConfig+Async.swift

@@ -47,7 +47,8 @@ public extension RemoteConfig {
   ///   }
   /// }
   /// ```
-  var configUpdates: AsyncThrowingStream<RemoteConfigUpdate, Error> {
+  @available(iOS 18.0, *)
+  var configUpdates: some AsyncSequence<RemoteConfigUpdate, Error> {
     AsyncThrowingStream { continuation in
       let listener = addOnConfigUpdateListener { update, error in
         switch (update, error) {

FirebaseRemoteConfig/Tests/Swift/SwiftAPI/AsyncStreamTests.swift renamed to FirebaseRemoteConfig/Tests/Swift/SwiftAPI/AsyncSequenceTests.swift

@@ -65,7 +65,7 @@ class MockRealtime: RCNConfigRealtime, @unchecked Sendable {
 // MARK: - AsyncStreamTests
 
 @available(iOS 13, tvOS 13, macOS 10.15, macCatalyst 13, watchOS 7, *)
-class AsyncStreamTests: XCTestCase {
+class AsyncSequenceTests: XCTestCase {
   var app: FirebaseApp!
   var config: RemoteConfig!
   var mockRealtime: MockRealtime!