Bump lightning-block-sync version number to fix SemVer CI

[tnull]

PR #4175 made the first breaking API change in lightning-block-sync since v0.2 without bumping the version number. Here we bump the version number, allowing our SemVer CI check to be happy again.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.33%. Comparing base (75a6c5b) to head (926523d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #4271 +/- ##
=======================================
Coverage 89.33% 89.33% =======================================
Files 180 180 Lines 139302 139302 Branches 139302 139302 =======================================
+ Hits 124439 124444 +5 + Misses 12241 12231 -10 - Partials 2622 2627 +5 

Flag	Coverage Δ
fuzzing	35.05% <ø> (+0.01%)	⬆️
tests	88.67% <ø> (-0.01%)	⬇️

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