Most of these are trivial (adding `#to_a` for example, or changing
to use client side argument names). The labels_resolver_spec changes
are more invasive since this spec tested a number of impossible states
(passing arguments not declared by the resolver) - these particular
changes were approved by @acroitor as part of
!40088.

The authorization_spec changes are made in such as way as to minimise
the impact of changes from
!40088
from which this work was extracted.

Nathan Friend authored 4 years ago and Etienne Baqué committed 4 years ago

This commit adds a new GraphQL mutation - `releaseAssetLinkCreate` -
that creates a new asset link and associates with an existing release.