Lifecycle-test.ts updated

Signed-off-by: Mikhail Aheichyk <[email protected]>

Author: maheichyk

test/test-utils/test-utils.ts

@@ -233,7 +233,7 @@ export function createTestClient(): MatrixClient {
         }),
         startClient: jest.fn().mockResolvedValue(undefined),
         stopClient: jest.fn().mockReturnValue(undefined),
-        removeAllListeners: jest.fn().mockResolvedValue(undefined),
+        removeAllListeners: jest.fn().mockReturnValue(undefined),
     } as unknown as MatrixClient;
 
     client.reEmitter = new ReEmitter(client);