Fix fetch info of BlueskyRun not its parent catalog.
Fix fetch info of BlueskyRun not its parent catalog.

This is a subtle bug, made difficult by the deep class hierarchy
of intake Catalogs---something we might revisit in intake someday.

The RemoteBlueskyRun was fetching the full, un-paginated /v1/info of its
*parent* catalog (e.g. BlueskyMongoCatalog). This was "harmless" in the
sense that everything still worked, but it was very slow because the
parent catalog can be large.

ericdill/databroker,ericdill/databroker