chore: update golangci configuration and clean repo

[kaymckay]

No description provided.

[codecov]

Codecov Report

Merging #8 (f9face1) into main (ee97d74) will decrease coverage by 0.38%.
The diff coverage is 7.14%.

@@            Coverage Diff             @@
##             main       #8      +/-   ##
==========================================
- Coverage   18.84%   18.45%   -0.39%     
==========================================
  Files           3        3              
  Lines         414      428      +14     
==========================================
+ Hits           78       79       +1     
- Misses        333      346      +13     
  Partials        3        3              

Impacted Files	Coverage Δ
cmd/vela-email/loginauth.go	0.00% <ø> (ø)
cmd/vela-email/plugin.go	48.46% <7.14%> (-3.89%)	⬇️