chore: add ARM image build support

[VinneyJ]

Description

Add ARM image build support for the ARM architectures.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Screenshots

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation

[kilemensi]

No need for reviews on this one @VinneyJ, we're switching to callable workflows so multi platform build will be added after that. Otherwise, PRs will just take too long to build.

Use this branch to temporarily build and deploy to arm64 instances but don't merge it.

[github-actions]

Latest updated Preview URL

Name	Review
codeforafrica-ui-pr-938	Visit

[koechkevin]

@CodeForAfrica/tech ready for review

[kilemensi]

Were we going to merge this @koechkevin / @thepsalmist or not?

[koechkevin]

Were we going to merge this @koechkevin / @thepsalmist or not?

@kilemensi yes, this PR is good to merge except for a concern that builds will take longer, which if the case we just use it for deployments but keep up to date.

[kilemensi]

Cool, @koechkevin but we need automatic DEV deployments on merge to main at least for trustlab. Given that both ui-1.dev and ui-2.prod are arm64, shouldn't we just build arm64 images instead of building both amd64 and arm64?

cc @CodeForAfrica/tech

PS: These are the only apps currently deployed in amd64 instance:

• maternal-figures-ui
• nigerianstat-ui
• twoopstracker-ui

We've already migrated twoopstracker-ui to ui repo so 🤞🏽 it'll be running on arm64 soon if not already there.