Update keycloak to latest version (at 13th november 2022 equal version 20.0.1)

As PO I want that we are working with the latest version of the tools and in this case the keycloak-software needs to get updatet to version 20.0.1 (latest version at 13th november 2022) so we can use all functions that are available (for example handling of changing password, delete profile and so one...)

DoR:

[x] DoR1: We got the installationpath / link to the version 20.0.1 to get ready to install

AcA:

[x] Aca1: The keycloak version was updated to version 20.0.1
[x] Aca2: The version is checked on the target infrastructure and confirmed that version 20.0.1 is up and running
[x] Aca3: It is comminicated to the team, that the new version is in use

Dod:

[x] Dod1: The new version is in use and works as designed
[x] Dod2: The new functions are in use (for example changing password etc.) and are working fine to solve the original ticket
[x] Dod3: All members in the team knows, that we use the new version from keycloak

AkrosAG / Akros-Marketplace

Update keycloak to latest version (at 13th november 2022 equal version 20.0.1) #264