CI: Add Github Action to build QEMU

[qwersem]

It's an issue to revive the old changes
from here #61

Old description:

temap commented on Oct 27, 2021
This PR adds GitHub action that builds QEMU and runs acceptance tests.

The primary motivation is to add smoke testing when new changes are pushed to master. It will help detect defects earlier instead of waiting for obscure reports from long-run integration testing from internal verification.

The further improvement is to trigger GH action when vmlinux images were updated in separate repositories.
The path to vmlinux images should be changed to foss owner before merging.