Add issue templates to files to change

[zware]

...when bumping the minor version number.

Also fix a minor typo in the area.

[zware]

The goal here is to avoid the situation where for some months we offered the option of 3.13 in the bug.yml template (thanks to python/cpython#111083) but not the crash.yml template (finally added in python/cpython/#124560. Ideally it would be noted somewhere that it's actually the previous version being added to these files when this happens, but I think context should make that clear enough to our RMs.

[zware]

(Side note: why am I allowed to merge here? I would have thought this should be limited to RMs :))

[hugovk]

Thanks, please can you also add them to PEP 101?

[zware]

See python/peps#4003 for the PEP-101 update.

[hugovk]

Thanks!