This will also need the dmr files in wildfly-legacy-test to be updated from being called *-wf26.dmr to being called *-xp4.dmr.

If whoever picks this up decides to not just rename the files, there are some instructions on how to generate them for an XP release in https://github.com/wildfly/wildfly-legacy-test/blob/main/tools/src/main/java/org/wildfly/legacy/util/DumpStandaloneResourceDefinitionUtil.java#L35 (essentially we are more concerned with the microprofile subsystems).