always use remote registry

[alexcb]

No description provided.

[alexcb]

this seems to be broken and can be reproduced locally with:

./earthly +for-linux && ./build/linux/amd64/earthly --use-inline-cache +for-linux

[alexcb]

here's another reproduction case:

earthly-v0.7.23 --use-inline-cache --use-remote-registry ./buildkitd+buildkitd

which outputs:

....
./buildkitd+buildkitd | DOCKERHUB_MIRROR_AUTH_FROM_CLOUD_SECRETS=true
./buildkitd+buildkitd | *cached* --> COPY ./oom-adjust.sh.template /bin/oom-adjust.sh.template
./buildkitd+buildkitd | DOCKERHUB_MIRROR_AUTH_FROM_CLOUD_SECRETS=true
./buildkitd+buildkitd | *cached* --> COPY ./runc-ps /bin/runc-ps
              output | --> exporting outputs
              output | [----------] 100% exporting outputs
              output | --> exporting outputs
              output | [----------] 100% exporting outputs
Error: pull ping error: pull ping response: rpc error: code = Unknown desc = image pull: 1 error occurred:
	* command failed: docker pull 127.0.0.1:34661/sess-9rxhsyo1hmjwbj1cbwommxdem/pullping:img-1: exit status 1: Error response from daemon: Get "http://127.0.0.1:34661/v2/": dial tcp 127.0.0.1:34661: connect: connection refused: exit status 1