Update Keycloak SPI jar file for Keycloak version 26.7.0

[ekraffmiller]

Following up on the dependabot PR, https://github.com/IQSS/dataverse/pull/12540/files, keycloak-dv-builtin-users-authenticator-1.0-SNAPSHOT.jar also needs to be built using the updated pom.xml.

Note: The persistence.xml file currently has two persistence units defined, 'user-store' and 'user-store-qa'. 'user-store-qa' should be removed, because it's not needed and the newer version of keycloak doesn't allow unused persistence units in the jar file.

[pdurbin]

We talked about this today at tech hours. Notes: https://docs.google.com/document/d/1xVD_Xi5OYlJnU1scEDQv5jjEIovu1GZDuilxwpgorpo/edit?usp=sharing