Add doc page with providers deprecations

[kacpermuda]

TLDR

I want to add a documentation page that will have all the deprecated classes, methods, functions etc. It will get more information when #36876 is merged (where i switched all deprecations to decorators, so that i can detect them with static analysis).

Rationale

This is a step number 3 of the process described in #36876 , please refer to it for the rationale and in depth description.

Future possibilities

We can probably incorporate this information inside the actual class/method docs and not in separate page.

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[kacpermuda]

@potiuk @eladkal I think this one can be merged if You don't have any further comments

[eladkal]

Thank you @kacpermuda for this one!
It should really help users to migrate faster to new versions