[2.4.0] Checkmk Werk 15330 created: mk_oracle: report failed login

[//]: # (werk v2) # mk_oracle: report failed login key | value ---------- | --- compatible | yes version | 2.4.0b1 date | 2024-04-10T08:38:00+00:00 level | 1 class | fix component | checks edition | cre Due to fixes introduced with <a href="https://checkmk.com/werk/16234">Werk #16234</a> a failed login to the oracle database was not reported as critical, but the services were going stale. This is now fixed.