Changed Dockerfile to build with 1.21 (#145)

* Changed Dockerfile to build with 1.21

* Updated dependencies

* Fix merge conflicts

Update on_pr.yaml (#135)

Update on_pr.yaml (#123)

dont export labels for logs (#112)

Fix the periodic logstream flusher (#107)

Split the channel receivers out (#106)

Remove the error checker (#105)

Add back err check (#104)

* Add back error check

* Stop sending to loki in a goroutine

Check err before StatusCode (#102)

Move err handler out of select case (#97)