Fix formatting, prepare for v0.11 beta 9 release

[dr-orlovsky]

Based on LNP-BP/client_side_validation#185

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 15 lines in your changes missing coverage. Please review.

Project coverage is 42.1%. Comparing base (9d8bd11) to head (bc1b9eb).
Report is 4 commits behind head on develop.

Files with missing lines	Patch %	Lines
consensus/src/timelocks.rs	0.0%	12 Missing ⚠️
consensus/src/tx.rs	0.0%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           develop    #107     +/-   ##
=========================================
- Coverage     42.2%   42.1%   -0.1%     
=========================================
  Files           35      35             
  Lines         3511    3521     +10     
=========================================
  Hits          1483    1483             
- Misses        2028    2038     +10     

Flag	Coverage Δ
rust	42.1% <0.0%> (-0.1%)	⬇️

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