Bring back arm/v7 images

[nijel]

Is your feature request related to a problem? If so, please describe.

The arm/v7 images build had to be disabled due to rust/cargo failures during the build. This got introduced by cryptography dependency.

Describe the solution you'd like

The arm/v7 image should be built :-).

Either cargo/dockerx/qemu will get fixed or somebody will implement a workaround for this.

Describe alternatives you've considered

It is disabled now to allow publishing others.

Additional context

• Bump cryptography from 3.3.2 to 3.4.4 #967 - introduction of cryptography built using rust
• Value too large for defined data type when cargo build on armv7 with qemu rust-lang/cargo#8719
• Value too large for defined data type docker/buildx#395
• https://bugs.launchpad.net/qemu/+bug/1805913

[nijel]

This might be a workaround: JonasAlfredsson/docker-nginx-certbot@e941b81

[github-actions]

Thank you for your report; the issue you have reported has just been fixed.

• In case you see a problem with the fix, please comment on this issue.
• In case you see a similar problem, please open a separate issue.
• If you are happy with the outcome, don’t hesitate to support Weblate by making a donation.

[nijel]

I've again dropped them in #1634. In case you want them back, please first persuade cryptography to publish arm/v7 wheels. I'm not going to fight with rustup being broken on docker buildx.