add script to revert failed keysend

[kiwiidb]

Dry run output:

...
user id 117770, id 6635997, amount 5, state initialized 
user id 2812, id 6636011, amount 24, state initialized 
user id 2812, id 6636031, amount 34, state initialized 
user id 2812, id 6636046, amount 43, state initialized 
user id 2812, id 6636061, amount 53, state initialized 
user id 2812, id 6636070, amount 62, state initialized 
user id 2812, id 6636079, amount 72, state initialized 
user id 2812, id 6636089, amount 81, state initialized 
user id 2812, id 6636101, amount 91, state initialized 
user id 1580, id 6636508, amount 15, state initialized 
Dry run: Found 1622 invoices 

[codecov[bot]]

Codecov Report

Merging #424 (4315bf3) into main (6925458) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #424   +/-   ##
=======================================
  Coverage   58.78%   58.78%           
=======================================
  Files          51       51           
  Lines        3557     3557           
=======================================
  Hits         2091     2091           
  Misses       1245     1245           
  Partials      221      221