style: satisfy the lint

Author: MojtabaHs

FirebaseInstallations/Source/Tests/Unit/FIRInstallationsItemTests.m

@@ -69,7 +69,7 @@ - (void)testValidate_InvalidItem {
       [validationError.localizedFailureReason containsString:@"invalid `registrationStatus`"]);
 
   FIRInstallationsItem *registeredItem = [[FIRInstallationsItem alloc] initWithAppID:@""
-                                                                      firebaseAppName:@""];
+                                                                     firebaseAppName:@""];
   registeredItem.registrationStatus = FIRInstallationStatusRegistered;
 
   XCTAssertFalse([registeredItem isValid:&validationError]);