fix: only update topology for specific methods

[karenc-bq]

Summary

fix: only update topology for specific network bounded methods to not interrupt important workflows, e.g. fetching large dataset.

resolves #363

Description

• Rename internal method to match the functionality.
• Specify a list of methods where it is safe to update topology before running. Certain methods are executed during specific workflows, e.g., ResultSet#next is executed when the driver is potentially fetching more rows from the server with a streaming result set. When driver attempts to create a new statement object to fetch topology statement, errors may throw because the connection object may not have two opened streaming result sets at once.

Additional Reviewers

[sergiyvamz]

Cancelling a query sounds like an emergency action for a user app and I wouldn't do any topology update when it happens.

[sergiyvamz]

Similar thoughts as above.