* feat: add dbfakedata for workspace builds and resources
This creates `coderdtest.NewWithDatabase` and adds a series of
helper functions to `dbfake` that insert structured fake data
for resources into the database.
It allows us to remove provisionerd from a significant amount of
tests which should speed them up and reduce flakes.
* Rename dbfakedata to dbfake
* Migrate workspaceagents_test.go to use the new dbfake
* Migrate agent_test.go to use the new fakes
* Fix comments
839a16e299