[pickers] Fix AdapterDateFnsV3 generated method types

[alexey-kozlenkov]

• I have followed (at least) the PR section of the contributing guide.

Fixes #13226 as suggested in the comments.

Applied to both AdapterDateFnsJalaliV3 & AdapterDateFnsV3 who rely on date-fns-v3
UPD: Applied to Adapters based on date-fns-v2 as well so the don't lose types when dependency is switched to date-fns-v3

[mui-bot]

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[LukasTy]

Thank you for your contribution! 🙏

I think that adding explicit types to the V2 adapters wouldn't hurt as well as it would allow us to avoid this problem if we keep both adapters, but just swap the defaults (use v3 in the repo as the default).
It's not a deal-breaker, but depending on who would take on that work and reviewing it, this additional work could help avoiding a very similar problem with V2 adapter in that case.
WDYT? 🤔

[alexey-kozlenkov]

@LukasTy makes sense. I’m away from laptop till next week, will come back to it Monday and supply for date-fns v2

[LukasTy]

makes sense. I’m away from laptop till next week, will come back to it Monday and supply for date-fns v2

Ok, thanks for the update, let's wait for next week. 👌
Have a nice time off. 😉

[alexey-kozlenkov]

@LukasTy all done. Have a look please once you have time 🙌

[LukasTy]

Thank you so much for taking care of it! 🙏
Great job. 👏 💯