CI: Move fetch-images sub-command from build-pipeline repo (#55298)

* Move fetch images from build-pipeline

* Modify drone

* Replace zerolog with builtin log

* Fix lint

pkg/build/docker/dockerconfig.go

@@ -0,0 +1,15 @@
+package docker
+
+import (
+	"github.com/grafana/grafana/pkg/build/config"
+)
+
+type Config struct {
+	Bucket        string
+	Edition       string
+	Tag           string
+	Distribution  []config.Distribution
+	Archs         []config.Architecture
+	DockerHubRepo string
+	Security      bool
+}