update Dockerfile to better support Apple silicon (multi-arch images)

[gschmutz]

@rlancemartin I had some troubles running the docker images on my Mac M1 and changed the Dockerfile to better support it.

[gschmutz]

@rlancemartin not sure if you saw my comment on my previous PR after it has been closed. That's why I repeat it here.....

I was hoping that you the github action would run in your repository and publishes the docker image as a package to the langchain-ai organisation. At the moment the action fails, because the GH_TOKEN (github token) environment variable is not set.
I have the action running on my own fork https://github.com/gschmutz/local-deep-researcher to have the docker image built whenever a new commit is done to the project. Not sure if that's something you are ok with. I could help you with the necessary config steps, if needed.

[rlancemartin]

Ah got it! @vbarda or @hinthornw may be online / can set this. I can have a look later today as well!

[rlancemartin]

@rlancemartin not sure if you saw my comment on my previous PR after it has been closed. That's why I repeat it here.....

I was hoping that you the github action would run in your repository and publishes the docker image as a package to the langchain-ai organisation. At the moment the action fails, because the GH_TOKEN (github token) environment variable is not set. I have the action running on my own fork https://github.com/gschmutz/local-deep-researcher to have the docker image built whenever a new commit is done to the project. Not sure if that's something you are ok with. I could help you with the necessary config steps, if needed.

I added a repo secret GH_TOKEN w/ a PAT that has write:packages permission to this repo. Hopefully that resolved it!