Tag spanner-0.24.2 release.

Video Intelligence GAPIC-only (googleapis#3432)

This adds the video intelligence library, published as a GAPIC only
with a thin manual wrapper for consistency.

Bugfix release of Storage. (googleapis#3353)

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Cut releases of core, error reporting, pubsub, spanner and storage. (g…

…oogleapis#3340)

Also updating the umbrella/uber package along the way.

Fix a system test TODO (googleapis#3314)

This should prevent the (as of yet, unexperienced) error case where
the API deletes the acked messages before we have a chance to seek
to them.