Fix Swift 6.4 warnings (#6240)

ElementX/Sources/FlowCoordinators/RoomMembersFlowCoordinator.swift

@@ -308,9 +308,9 @@ final class RoomMembersFlowCoordinator: FlowCoordinatorProtocol {
         
         // Replace the RoomMemberDetailsScreen without any animation.
         // If this pop and push happens before the previous navigation is completed it might break screen presentation logic
-        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(500)) {
-            self.navigationStackCoordinator.pop(animated: false)
-            self.navigationStackCoordinator.push(coordinator, animated: false) { [weak self] in
+        DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(500)) { [self] in
+            navigationStackCoordinator.pop(animated: false)
+            navigationStackCoordinator.push(coordinator, animated: false) { [weak self] in
                 self?.stateMachine.tryEvent(.dismissedUserProfile)
             }
         }

ElementX/Sources/FlowCoordinators/UserSessionFlowCoordinator.swift

@@ -371,7 +371,7 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
                     self.navigationTabCoordinator.setSheetCoordinator(nil)
                     
                     // The sheet needs to be dismissed before the alert can be shown
-                    try await Task.sleep(for: .milliseconds(100))
+                    try? await Task.sleep(for: .milliseconds(100))
                     await self.runLogoutFlow()
                 }
             case .forceLogout: