fix: Solana get_block transaction version

[albert-llimos]

Checklist

Please conduct a thorough self-review before opening the PR.

• [x] I am confident that the code works.
• [ ] I have written sufficient tests.
• [ ] I have written and tested required migrations.
• [ ] I have updated documentation where appropriate.

Summary

When getting block in Solana use max_supported_transaction_version zero instead of defaulting to None.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

Project coverage is 72%. Comparing base (238c90b) to head (b8a8984). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
engine/src/witness/sol.rs	0%	10 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5424 +/- ## ====================================== - Coverage 72% 72% -0% ====================================== Files 490 490 Lines 86883 86768 -115 Branches 86883 86768 -115 ====================================== - Hits 62396 62209 -187 - Misses 21554 21617 +63 - Partials 2933 2942 +9 ```

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