[test flake]: accounts test flake

[ellemouton]

I've come across the following flake a few times:

 litd_accounts_test.go:298: 
                Error Trace:    /Users/elle/LL/lightning-terminal/itest/litd_accounts_test.go:298
                                                        /Users/elle/LL/lightning-terminal/itest/litd_accounts_test.go:72
                                                        /Users/elle/LL/lightning-terminal/itest/litd_mode_remote_test.go:265
                Error:          Not equal: 
                                expected: 2990950
                                actual  : 5974988
                Test:           TestLightningTerminal/test_mode_remote/without_UI_password/gRPC_super_macaroon_account_system_test

This will likely be solved through the use of a wait.NoError in the test.