Allow to restart declined pipelines

[qwerty287]

closes #300

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 26.99%. Comparing base (84c1b92) to head (83d017d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
server/pipeline/restart.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4109      +/-   ##
==========================================
+ Coverage   26.97%   26.99%   +0.01%     
==========================================
  Files         395      395              
  Lines       27406    27406              
==========================================
+ Hits         7393     7398       +5     
+ Misses      19311    19306       -5     
  Partials      702      702              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[6543]

Looks good but have not tested it jet

[6543]

tested 🎉

[woodpecker-bot]

Tearing down https://woodpecker-ci-woodpecker-pr-4109.surge.sh