Add `golangci-lint`to AI Bridge

[dannykopping]

Our CI is currently lacking a linting step.

[mtojek]

@pawbana can we resolve this as duplicate of AIGOV-211?

[pawbana]

Yes, or it could be set as sub issue of AIGOV-211 and marked as done.

[linear-code]

from pawel:

Done in: #263 #264