Fix shib-dev-env

[GPortas]

Overview of the Feature Request

After the latest updates in Dataverse, Keycloak, and the SPI, shib-dev-env is not working. We need to update the environment to be compatible with the latest versions in the architecture.

Although it is not an environment used regularly, it is a use case of Shib configured directly as a SAML IdP provider in Keycloak, and it is useful to keep this example available for possible future scenarios that may seek to replicate it.

What kind of user is the feature intended for? Sysadmin, developer

What inspired the request? Failing shib-dev-env

What existing behavior do you want changed? N/A

Any brand-new behavior do you want to add to Dataverse? N/A

Any open or closed issues related to this feature request? None