Issue: Usage of depreacted RPC calls

[Woody4618]

Description Hey, there are bunch of RPC calls that are deprecated and will be removed very soon. You can find the deprecated calls here: https://github.com/anza-xyz/agave/wiki/Agave-v2.0-Transition-Guide

I searched your SDK for usage of these calls and looks like you are using getStakeActivation and maybe getConfirmedSignaturesForAddress2? These calls will not be usable anymore soon after breakpoint.

/Users/jonasmac2/Documents/GitHub/solana-py/CHANGELOG.md:359:- Use new devnet api endpoint, deprecate `solana.rpc.api.getConfirmedSignaturesForAddress2` and use `solana.rpc.api.getSignaturesForAddress` instead ([#77](https://github.com/michaelhly/solana-py/pull/77))
/Users/jonasmac2/Documents/GitHub/solana-py/src/solana/rpc/core.py:60:    GetStakeActivation,
/Users/jonasmac2/Documents/GitHub/solana-py/src/solana/rpc/core.py:347:    ) -> GetStakeActivation:
/Users/jonasmac2/Documents/GitHub/solana-py/src/solana/rpc/core.py:349:        return GetStakeActivation(pubkey, RpcEpochConfig(epoch, commitment_to_use))

Here you can find a replacement implementation of getStakeActivation for rust and JS client side: https://github.com/solana-developers/solana-rpc-get-stake-activation

If you know users of the SDK would also be great if you could inform them about the deprecated calls so nothing breaks when the calls actually get removed on mainnet.

If you are not actually using the deprecated calls in the SDK feel free to just close this :)

[michaelhly]

Hi, thanks! I'd be happy to accept a PR to add deprecation warnings to the suggested methods.

[Woody4618]

Great! I was not planning to do it myself, im not really familiar with python, just wanted to let you know. Im going through all solana sdks to let people know about the removal of these calls. But maybe someone else will pick this up when they run into the error. :)

[akashcodes]

Hey @michaelhly, seems like a good first issue. I'll be happy to pick it up.

[michaelhly]

@akashcodes sounds good!