Fixes https://github.com/gitpod-io/gitpod/issues/7866
This PR updates the `installation-admin-controller` to also retrieve
more data to send with telemetry. These are not part of the
`installationAdminDb` as we do not want to store this in the database
but lazily retrieve whenever a request is sent to `/data` endpoint
of the `installation-admin` express app unlike the `uuid` and settings
which need to be stored and updated.
The following fields are added:
- `totalUsers` : specifies the total number of users in the instance
- `totalWorkspaces`: specifies the total number of **regular** workspaces in the instance
- `totalInstances`: specifies the total number of **regular** workspace instances in the gitpod instance
Signed-off-by: Tarun Pothulapati <tarun@gitpod.io>
