Update test Dockerfile

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

Author: crazy-max

hack/test.Dockerfile

@@ -1,5 +1,10 @@
 # syntax=docker/dockerfile:1.2
 ARG NODE_VERSION
+ARG DOCKER_VERSION=20.10.7
+ARG BUILDX_VERSION=0.6.0
+
+FROM docker:${DOCKER_VERSION} as docker
+FROM docker/buildx-bin:${BUILDX_VERSION} as buildx
 
 FROM node:${NODE_VERSION}-alpine AS base
 RUN apk add --no-cache git
@@ -15,8 +20,8 @@ ENV RUNNER_TEMP=/tmp/github_runner
 ENV RUNNER_TOOL_CACHE=/tmp/github_tool_cache
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/node_modules \
-  --mount=type=bind,from=crazymax/docker,source=/usr/libexec/docker/cli-plugins/docker-buildx,target=/usr/libexec/docker/cli-plugins/docker-buildx \
-  --mount=type=bind,from=crazymax/docker,source=/usr/local/bin/docker,target=/usr/bin/docker \
+  --mount=type=bind,from=docker,source=/usr/local/bin/docker,target=/usr/bin/docker \
+  --mount=type=bind,from=buildx,source=/buildx,target=/usr/libexec/docker/cli-plugins/docker-buildx \
   yarn run test --coverageDirectory=/tmp/coverage
 
 FROM scratch AS test-coverage