Fix information_schema query failures in BigQuery connector #7830
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In 212e1bb the toRemoteTable method
called listTables unconditionally instead of returning early if
case-insensitive name matching is not enabled.
That caused query failures for information_schema queries because
instead of an early return it tried to list tables in a remote schema
called
information_schema
(which isn't intended).This change fixes the issue by making the listTables call lazy by using
a Supplier instead of a materialized iterable.