Updates coder/customers#365
This PR updates our migration framework to run all migrations in a single transaction. This is the same behavior we had in v1 and ensures that failed migrations don't bring the whole deployment down. If a migration fails now, it will automatically be rolled back to the previous version, allowing the deployment to continue functioning.
Fixes an issue where API tokens belonging to a deleted user were
not invalidated:
- Adds a trigger to delete rows from the api_key stable when the
column deleted is set to true in the users table.
- Adds a trigger to the api_keys table to ensure that new rows
may not be added where user_id corresponds to a deleted user.
- Adds a migration to delete all API keys from deleted users.
- Adds tests + dbfake implementation for the above.
