Update project in preperation for Jakarta EE 12

[KyleAure]

• Java versions: 17 + 21 -> 21 + 25
• Project version: 3.1.1-SNAPSHOT -> 3.2.0-SNAPSHOT

[njr-11]

Let's not change maven coordinates until it is decided that specifications will need to do so for Jakarta EE 12. I know the proposal was brought up today on the Jakarta Platform call, but we don't know yet if it will be agreed on. A change of coordinates for the sake of consistency across Jakarta EE specifications also needs to be weighed against the loss of consistency between versions of the Jakarta EE specification itself. Currently, it is nice that a developer can see all of the versions side by side and it is very obvious which is the latest. I think that would be lost if changing coordinates.

[KyleAure]

@njr-11 I pulled those changes out into a separate PR #555 that we can leave in draft state until we have more consensus on this type of change.

[arjantijms]

Let's not change maven coordinates until it is decided that specifications will need to do so for Jakarta EE 12. I know the proposal was brought up today on the Jakarta Platform call, but we don't know yet if it will be agreed on

We can just decide to do it here. The Authentication API did this a while ago as well. I checked before doing that, and we don't need to be forced by the platform to do it.

Consistency is good, and at the moment concurrency is one of the few exceptions to an otherwise pretty consistent naming scheme.