feat: process webhooks in background

[herlon214]

Once we have 5 retries of 1min each and Sonarqube expects the response in less than 10s we need to process the webhooks in background.

[codecov]

Codecov Report

Merging #2 (c3d69df) into main (3bbeb8d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main       #2   +/-   ##
=======================================
  Coverage   75.34%   75.34%           
=======================================
  Files           4        4           
  Lines         219      219           
=======================================
  Hits          165      165           
  Misses         37       37           
  Partials       17       17           

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