Add Java 26 Support

[jasonjkeller]

Java 26 is slated to release sometime around March 2026.
https://openjdk.org/projects/jdk/26/

We need to start as early as possible with our testing of Java 26 support as there may be breaking changes to consider.

[Newrelic-Boomi]

https://new-relic.atlassian.net/browse/NR-519721