Move entirely to zerolog (#426)

Completely switch to zerolog

(Remove usage of logrus and std logger)

Signed-off-by: jolheiser <john.olheiser@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>

pipeline/backend/docker/pool.go

@@ -1,9 +1,7 @@
 package docker
 
 // import (
-// 	"context"
-//
-// 	"github.com/woodpecker-ci/woodpecker/pipeline/backend"
+
 // )
 //
 // // Pool manages a pool of Docker clients.