Provider-VC issuer may only contain 255 characters

When you POST a provider VC a keycloak-group with the name of the issuer is created. This name may only be 255 charakters long (see https://github.com/keycloak/keycloak/issues/9758) Therefore we get an error when trying to post a provider with an issuer from the gaiax-wizard.

You could work around this by altering these tables in the keycloak DB, but I highly recommend to only to this for test purposes:

ALTER TABLE group_attribute ALTER COLUMN value TYPE TEXT;
ALTER TABLE keycloak_group ALTER COLUMN name TYPE TEXT;

(TODO will post logs when I am back on my normal setup)