Update DeclKind in z3-sys for new values

[twizmwazin]

This adds all of the existing DeclKinds defined in the C API to the DeclKind enum. I did not add comments as they seemed inconsistent in the original. Let me know if I can improve this, I intend to add higher level bindings to various ops here for my use case.

Future work: This feels like it should be done as a macro.

[twizmwazin]

I believe the ubuntu CI failure is due to Ubuntu 24.04 packaging z3 4.8.12, released in 2021, before some of these DeclKinds were added... I would advocate for bumping the minimum to something more recent. I don't know if that is palatable or conflicts with other goals though.

[toolCHAINZ]

I ran into this same z3 issue on a project of mine. In my case, I re-targeted my docker setup on debian trixie. That distro is still unstable, but has an up-to-date z3 and has worked well (so far 🤞) for testing software using z3.rs.

[twizmwazin]

In my case I will be statically linking z3, so I'm basically always using the bundled option.

[toolCHAINZ]

I think we'll pull the trigger on this in April when the next LTS updates their ancient apt z3 package.