provide jdk25 variants

[qeepcologne]

What feature do you want to see added?

add jenkins jdk25 based images

Upstream changes

No response

Are you interested in contributing this feature?

No response

[gounthar]

You could revive the old PR I had started way too early.
#2072

[dduportal]

Let's pause a little: the infra team needs to provide Windows 2025 agents as a pre-requisites (otherwise no CI and no publication can be performed 😅).

Watch jenkins-infra/helpdesk#4791, it's almost there!