This also updates code to use the default import syntax instead of
`import * as` when the imported module exposes a default. This is needed
with the latest typescript version.
Change-type: patch
From docker 25, the engine will validate IPAM config. This would cause
the docker utils test to fail since the network/subnet configuration was
incorrect.
Change-type: patch
Merged docker-utils and delta tests into a single test suite. They are
now ran as part of the integration tests using the real engine.
Change-type: patch
