pgwire: TestAuthenticationAndHBARules/insecure=false/scram/autodetect flaky

[andreimatei]

Failed for me here

=== RUN   TestAuthenticationAndHBARules/insecure=false/scram/autodetect
    datadriven.go:243:
        /go/src/github.com/cockroachdb/cockroach/pkg/sql/pgwire/testdata/auth/scram:237: .*client_connection_end
        expected:
        72 {"EventType":"client_authentication_info","Info":"found stored crdb-bcrypt credentials; requesting cleartext password","InstanceID":1,"Method":"cert-password","Network":"tcp","RemoteAddress":"XXX","SystemIdentity":"foo","Timestamp":"XXX","Transport":"hostssl","User":"foo"}
        73 {"EventType":"client_authentication_ok","InstanceID":1,"Method":"cert-password","Network":"tcp","RemoteAddress":"XXX","SystemIdentity":"foo","Timestamp":"XXX","Transport":"hostssl","User":"foo"}
        74 {"Duration":"NNN","EventType":"client_session_end","InstanceID":1,"Network":"tcp","RemoteAddress":"XXX","Timestamp":"XXX"}
        75 {"Duration":"NNN","EventType":"client_connection_end","InstanceID":1,"Network":"tcp","RemoteAddress":"XXX","Timestamp":"XXX"}
        found:
        72 {"Duration":"NNN","EventType":"client_connection_end","InstanceID":1,"Network":"tcp","RemoteAddress":"XXX","Timestamp":"XXX"}
        73 {"EventType":"client_authentication_ok","InstanceID":1,"Method":"cert-password","Network":"tcp","RemoteAddress":"XXX","SystemIdentity":"foo","Timestamp":"XXX","Transport":"hostssl","User":"foo"}
        74 {"Duration":"NNN","EventType":"client_session_end","InstanceID":1,"Network":"tcp","RemoteAddress":"XXX","Timestamp":"XXX"}
        75 {"Duration":"NNN","EventType":"client_connection_end","InstanceID":1,"Network":"tcp","RemoteAddress":"XXX","Timestamp":"XXX"}
            --- FAIL: TestAuthenticationAndHBARules/insecure=false/scram/autodetect (0.26s)