feat: solana chain tracking events

[kylezs]

Pull Request

Checklist

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

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

Summary

We want chain tracking events for solana

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 60.00000% with 20 lines in your changes missing coverage. Please review.

Project coverage is 70%. Comparing base (8c5ccff) to head (d490ddc). Report is 1 commits behind head on main.

Files	Patch %	Lines
...te-chain/runtime/src/chainflip/solana_elections.rs	0%	10 Missing :warning:
state-chain/runtime/src/lib.rs	0%	0 Missing and 5 partials :warning:
...chain/runtime/src/migrations/solana_integration.rs	0%	4 Missing :warning:
...lections/src/electoral_systems/monotonic_median.rs	0%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5195 +/- ## ====================================== - Coverage 70% 70% -0% ====================================== Files 481 481 Lines 86349 86238 -111 Branches 86349 86238 -111 ====================================== - Hits 60588 60405 -183 - Misses 22476 22544 +68 - Partials 3285 3289 +4 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.