Custom group claim name

[j-zimnowoda]

Is your feature request related to a problem? Please describe.

Some IdP providers (like Auth0) do not allow to add groups scopes to JWT. Instead IdP appends it as namespaces scope, e.g.: https://claims.example.com/roles which contains "groups".

Describe the solution you'd like A clear and concise description of what you want to happen.

Allow to specify the oidc.groupsClaimName so the Identity Provider Mappers use it instead of hardcoded groups

See: https://github.com/redkubes/otomi-tasks/blob/923eb14a30422f5f9e76a8c1d1078aded5872875/src/tasks/keycloak/config.ts#L46

[j-zimnowoda]

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