Update Wildfly to version compatible with Java 11 and Java 17

[lbschanno]

Update Wildfly to a version that can run on both Java 11 and Java 17 to make the transition to Java 17 easier.

[lbschanno]

Wildfly 26 added a JAAS security realm type to the Elytron security subsystem. Currently we use Picketbox instead of Elytron because of a lack of support for JAAS in Wildfly 17.0.1.Final. Picketbox will not work in Java 17 due to needing classes that were deleted in Java 14, so we must migrate to Elytron, and support for the Picketbox-based security vault is removed in Wildfly 25.

Additionally, 26 is the last version that supports Java EE 8 as long as it is Jakarta EE 8 compatible. Version 27 supports Jakarta EE 10.