full-featured integration tests with Knot Resolver & Knot DNS
`apkg` is reaching feature parity with current Knot packaging setup.
As a final task for %v0.1 , A CI pipeline must be created that will ensure apkg continues to work for Knot packaging.
The pipeline must ensure following on all supported platforms:
* `apkg build` successfully creates dev packages from Knot Resolver & DNS repos
* `apkg build --upstream` successfully creates upstream package from latest upstream Knot Resolver & DNS archives
For now `apkg` branches in Knot Resolver & DNS will be used and later switched to `master`.
issue