Flaky test `Test_Client`

[Gerrit91]

Description

    client_test.go:73: 
                Error Trace:    /home/gerrit/git/github.com/metal-stack/api/go/client/client_test.go:73
                Error:          Should be false
                Test:           Test_Client
--- FAIL: Test_Client (1.01s)

[majst01]

Description

    client_test.go:73: 
                Error Trace:    /home/gerrit/git/github.com/metal-stack/api/go/client/client_test.go:73
                Error:          Should be false
                Test:           Test_Client
--- FAIL: Test_Client (1.01s)

Could probably be solved with the interceptor which does not forward to the impl trick