Update to distribution v3 alpha

See https://github.com/distribution/distribution/releases/tag/v3.0.0-alpha.1

registry-windows/Dockerfile

@@ -6,21 +6,22 @@ ENV GO111MODULE=auto
 SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
 
 ENV DOCKER_BUILDTAGS include_oss include_gcs
-ENV DISTRIBUTION_VERSION v2.8.3
+ENV DISTRIBUTION_VERSION v3.0.0-alpha.1
 
-RUN mkdir src\github.com\docker ; \
-    cd src\github.com\docker ; \
-    git clone -q https://github.com/docker/distribution ; \
+RUN mkdir src\github.com\distribution ; \
+    cd src\github.com\distribution ; \
+    git clone -q https://github.com/distribution/distribution ; \
     cd distribution ; \
     git checkout -q $env:DISTRIBUTION_VERSION ; \
     cd cmd\registry ; \
-    go build -o registry.exe
+    go build -o registry.exe ; \
+    dir
 
 FROM mcr.microsoft.com/windows/nanoserver:ltsc2022
 EXPOSE 5000
 
 ENTRYPOINT ["\\registry.exe"]
 CMD ["serve", "/config/config.yml"]
 
-COPY --from=build /go/src/github.com/docker/distribution/cmd/registry/registry.exe /registry.exe
+COPY --from=build /go/src/github.com/distribution/distribution/cmd/registry/registry.exe /registry.exe
 COPY config.yml /config/config.yml