feat: add maybe_ccm_limit

[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.
• [x] I have updated documentation where appropriate.

Summary

Adding a limit to the ccm transfers, same as for regular batches.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 71%. Comparing base (378b76d) to head (24d1e63). Report is 4 commits behind head on main.

Files	Patch %	Lines
state-chain/runtime/src/chainflip.rs	75%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5151 +/- ## ====================================== - Coverage 71% 71% -0% ====================================== Files 460 460 Lines 81912 81775 -137 Branches 81912 81775 -137 ====================================== - Hits 58417 58223 -194 - Misses 20403 20457 +54 - Partials 3092 3095 +3 ```

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