Revert "deps: Bump all sdk and spl crates to v3 compatibility (#7492)"

[joncinque]

This reverts commit 06464c5.

Problem

The SDK bump done with #7492 introduces an incompatibility with the status cache in snapshots because InstructionError removed the string part of its BorshIoError.

Summary of Changes

Revert the change to make master work again.

[mergify]

If this PR represents a change to the public RPC API:

1. Make sure it includes a complementary update to rpc-client/ (example)
2. Open a follow-up PR to update the JavaScript client @solana/kit (example)

Thank you for keeping the RPC clients in sync with the server API @joncinque.

[mergify]

The Firedancer team maintains a line-for-line reimplementation of the
native programs, and until native programs are moved to BPF, those
implementations must exactly match their Agave counterparts.
If this PR represents a change to a native program implementation (not
tests), please include a reviewer from the Firedancer team. And please
keep refactors to a minimum.

[mergify]

For your information, the zk-keygen and zk-sdk directories are
scheduled to be relocated to solana-program/zk-elgamal-proof in a
separate repository. Additionally, the zk-token-sdk directory will
be removed. Please take these upcoming changes into account when
making modifications.

[brooksprumo]

I'm sorry 😢

[codecov-commenter]

Codecov Report

❌ Patch coverage is 90.36145% with 56 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.4%. Comparing base (f6b92ef) to head (2e86546).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #7556    +/-   ##
========================================
  Coverage    83.4%    83.4%            
========================================
  Files         811      811            
  Lines      365013   364882   -131     
========================================
- Hits       304488   304421    -67     
+ Misses      60525    60461    -64     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[steviez]

We didn't get a review of #7559 in quickly enough, and some of the canaries already got into a poor state due to the incompatibility so going to merge this

[steviez]

Stamping this to get master back into a good state