rustfmt: Run on lightning/src/sync/*

[tnull]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 86.95652% with 6 lines in your changes missing coverage. Please review.

Project coverage is 89.61%. Comparing base (6662c5c) to head (555bd75).
Report is 23 commits behind head on main.

Files with missing lines	Patch %	Lines
lightning/src/sync/debug_sync.rs	82.35%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3319      +/-   ##
==========================================
- Coverage   89.65%   89.61%   -0.04%     
==========================================
  Files         126      126              
  Lines      102546   102574      +28     
  Branches   102546   102574      +28     
==========================================
- Hits        91935    91921      -14     
- Misses       7890     7921      +31     
- Partials     2721     2732      +11     

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[TheBlueMatt]

Thanks!