Merge pull request #565 from crazy-max/buildx-update

[master] update buildx to v0.6.1

Author: thaJeztah

plugins/buildx.installer

@@ -6,7 +6,7 @@ source "$(dirname "$0")/.common"
 PKG=github.com/docker/buildx
 GOPATH=$(go env GOPATH)
 REPO=https://${PKG}.git
-: "${BUILDX_COMMIT=v0.6.0}"
+: "${BUILDX_COMMIT=v0.6.1}"
 DEST=${GOPATH}/src/${PKG}
 
 build() {