patch: Add GHA Built Test Deploy workflows

[rcooke-warwick]

Adds build deploy test workflow

• Create PR with all devices supported
• Set deploy environment to balena-cloud.com
• Disable the associated multi-job and device jobs in Jenkins
• All required devices are passing on GHA + doesn't require a rebase
• Approved by the reviewer (policy-bot passed)
• Update branch protection to require the GHA workflows
• Remove Jenkins build and deploy workflow (this PR)

[klutchell]

NIT, I would like to start providing the worker_type in the test matrix and a newline at the EOF is preferred for linting.

Otherwise it's looks good

[vipulgupta2048]

@klutchell to make it explicit that worker_type is actually testbot?

[klutchell]

@klutchell to make it explicit that worker_type is actually testbot?

Yes, though it's not required I find it helpful at the repo level to quickly see what the worker type is rather than read the comment and deduce it.