* Update sqladmin api
Pull in updates to the generated sqladmin api and update callers for
the change in the StorageAutoResize setting
* Add support for availability_type setting
Allow specifying ZONAL or REGIONAL to allow for PostgreSQL HA
setup.
* vendor: update sqladmin/v1beta4
* Test setting AvailabilityType for PostgreSQL
Add tests that cover the creation of a Postgres database with
AvailabilityType set to REGIONAL, and correct some small issues that
were preventing compilation.
* Fix breaking change w/ disk_autoresize in cloudsql
95e5582766
The cloudsql admin client changed the way it handles StorageAutoResize
as a parameter, in order to be more explicit about when the server has
ommitted the field. This changed the type from being bool to *bool, and
we need to modify provider code so that we supply the right value to the
api client.
* Used standard validation functions where possible, added a GCP name validation function.
* Add tests for GCP name, factor out a ValidateRegexp function.
* make fmt
