Fix linter errors

Author: laevandus

Sources/StreamVideo/StreamVideo.swift

@@ -7,7 +7,7 @@ import Foundation
 import StreamWebRTC
 import SwiftProtobuf
 
-public typealias UserTokenProvider = @Sendable (@Sendable @escaping(Result<UserToken, Error>) -> Void) -> Void
+public typealias UserTokenProvider = @Sendable (@Sendable @escaping (Result<UserToken, Error>) -> Void) -> Void
 public typealias UserTokenUpdater = @Sendable (UserToken) -> Void
 
 /// Main class for interacting with the `StreamVideo` SDK.

Sources/StreamVideo/WebSockets/Events/EventBatcher.swift

@@ -7,7 +7,7 @@ import Foundation
 /// The type that does events batching.
 protocol EventBatcher: Sendable {
     typealias Batch = [WrappedEvent]
-    typealias BatchHandler = @Sendable (_ batch: Batch, _ completion: @Sendable @escaping() -> Void) -> Void
+    typealias BatchHandler = @Sendable (_ batch: Batch, _ completion: @Sendable @escaping () -> Void) -> Void
 
     /// The current batch of events.
     var currentBatch: Batch { get }
@@ -35,7 +35,7 @@ final class Batcher<Item> {
     /// The timer that  calls `processor` when fired.
     private var batchProcessingTimer: TimerControl?
     /// The closure which processes the batch.
-    private let handler: @Sendable (_ batch: [Item], _ completion: @Sendable @escaping() -> Void) -> Void
+    private let handler: @Sendable (_ batch: [Item], _ completion: @Sendable @escaping () -> Void) -> Void
     /// The serial queue where item appends and batch processing is happening on.
     private let queue = DispatchQueue(label: "io.getstream.Batch.\(Item.self)")
     /// The current batch of items.

StreamVideoTests/Mock/EventBatcher_Mock.swift

@@ -9,12 +9,12 @@ import protocol StreamVideo.Timer
 final class EventBatcher_Mock: EventBatcher, @unchecked Sendable {
     var currentBatch: [WrappedEvent] = []
 
-    let handler: @Sendable (_ batch: [WrappedEvent], _ completion: @escaping @Sendable() -> Void) -> Void
+    let handler: @Sendable (_ batch: [WrappedEvent], _ completion: @escaping @Sendable () -> Void) -> Void
 
     init(
         period: TimeInterval = 0,
         timerType: Timer.Type = DefaultTimer.self,
-        handler: @escaping @Sendable (_ batch: [WrappedEvent], _ completion: @escaping @Sendable() -> Void) -> Void
+        handler: @escaping @Sendable (_ batch: [WrappedEvent], _ completion: @escaping @Sendable () -> Void) -> Void
     ) {
         self.handler = handler
     }