update GDB stubs to 16.3

[oltolm]

No description provided.

[srittau]

Thanks! stubs/gdb/METADATA.toml needs to be updated to the correct version as well. Also, for review purposes, is there some way to view the changes to the Python API between the versions?

[oltolm]

You can look at NEWS and search for * Python API.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

pwndbg (https://github.com/pwndbg/pwndbg)
+ pwndbg/dbg/gdb/symbol.py:162: error: Unused "type: ignore" comment  [unused-ignore]

[srittau]

Thanks! Looks reasonable and I trust you and stubtest here.

Well, I trust stubtest, but that complains.

[srittau]

@oltolm Our CI still complains about a few symbols that are not available at runtime: https://github.com/python/typeshed/actions/runs/15323229467/job/43111418230?pr=13923

Are you sure these items exist in gdb 16.3? In that case, these items need to be added to stubs/gdb/@tests/stubtest_allowlist.txt, otherwise they need to be removed from the stubs.