Make arm and x86 builds run parallelly

[sainak]

Sequentially building both takes more than 8 minutes.
Improve our github actions pipeline to run builds in separate jobs

[balaji-sivasakthi]

@sainak, does the Makefile help spin up the container? If so, why would we need to run arm and x86 builds? Could you explain in more detail where we should use it?

[sainak]

@sainak, does the Makefile help spin up the container? If so, why would we need to run arm and x86 builds? Could you explain in more detail where we should use it?

this is regarding the ci pipelines that we have in github actions, https://github.com/coronasafe/care/blob/master/.github/workflows/deployment.yaml

[balaji-sivasakthi]

@sainak Got it! Thank you.