Fixed goreleaser dockers, use_buildex is deprecated.

Author: laetho

.goreleaser.yml

@@ -69,7 +69,7 @@ dockers:
       - "ghcr.io/laetho/mg:latest"
       - "ghcr.io/laetho/mg:{{.Version}}"
     dockerfile: Dockerfile
-    use_buildx: true
+    use: buildx
     skip_push: false
     build_flag_templates:
       - "--platform=linux/amd64"