Update main post 0.2 release

[tnull]

We update the CHANGELOG and version numbers on main, also to fix the SemVer checks CI.

[ldk-reviews-bot]

👋 Thanks for assigning @TheBlueMatt as a reviewer!
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Once they submit their review, I'll check if a second reviewer would be helpful.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.31%. Comparing base (de384ff) to head (29d97a2).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #4260 +/- ##
==========================================
- Coverage 89.33% 89.31% -0.03% 
==========================================
Files 180 180 Lines 139042 139042 Branches 139042 139042 ==========================================
- Hits 124219 124185 -34 - Misses 12196 12229 +33 - Partials 2627 2628 +1 

Flag	Coverage Δ
fuzzing	34.99% <ø> (-0.98%)	⬇️
tests	88.68% <ø> (-0.03%)	⬇️

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[TheBlueMatt]

Ideally we won't actually bump the version here in a new release, so maybe we don't touch it until we have a PR breaking semver?

[tnull]

True, that's probably preferable. Now force-pushed an update that only bumps lightning for now.

[ldk-reviews-bot]

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[TheBlueMatt]

Thanks