This PR is the first step aiming to resolve#15126 -
Creating a new endpoint to return the details associated to a
provisioner key.
This is an authenticated endpoints aiming to be used by the provisioner
daemons - using the provisioner key as authentication method.
This endpoint is not ment to be used with PSK or User Sessions.
What this changes:
- Unhides the `--key` flag on provisioner start
- Deprecates and hides `provisionerd` command group in favor of
`provisioner(s)`
- Removes org id from `coder provisioner keys list`
