[2.4.0] Checkmk Werk 16357 created: Check certificates: Fix checking of common name of issuer

[//]: # (werk v2) # Check certificates: Fix checking of common name of issuer key | value ---------- | --- date | 2024-04-18T11:02:41+00:00 version | 2.4.0b1 class | fix edition | cre component | checks level | 1 compatible | yes The active certificate check (configured via the ruleset *Check certificates*) did not check the common name (CN) of the certificate issuer correctly: * If only the checking of the issuer CN was activated, the CN of the subject was checked instead. * If both the checking of the issuer and the subject CN where activated, the active check crashed with\ <code>error: the argument '--subject-cn \<SUBJECT_CN\>' cannot be used multiple times.</code>