Dockerfiles have some architecture hardcoding for x86 about parsec

[mohamedasaker-arm]

Thanks @ericvh for creating the issue. Could you give more details about what you were trying to achieve?
The docker image is intended to run e2e_tests, so targeting a specific architecture (The CI one) was okay.
Do you think we could benefit from generalizing the docker image or have different ones for different architectures?

[ericvh]

I think we should be arm64 by default and multiarch (at least linux/arm64 and ideally linux/arm/v7 in addition to amd64) - its easy enough to do nowdays, I can show you my multi-arch github CI if you like which generates signed buildx docker multiarch manfiests