What were you trying to do that didn't work?

I built a RHEL for Edge system using osbuild and included `rhc` as part of the blueprint. When I tried to use `rhc connect` to connect the system, the operation failed because it could not register with RHSM. It could not register with RHSM because `subscription-manager` was not installed.

Since the `rhc connect` operation will attempt to register with RHSM, it should not assume that `subscription-manager` is installed by default and should require `subscription-manger` as part to the install process.

Please provide the package NVR for which bug is seen:

rhc-0.2.4-3.el9_3.x86_64

How reproducible:

Always

Steps to reproduce

1. Create osbuild blueprint that includes `rhc`
2. Use osbuild to produce an `edge-commit` artifact
3. Use osbuild to produce an `edge-installer` artifact
4. Install the `edge-installer` artifact
5. Try to run `rhc connect`

Expected results

The RHC client will successfully try to register with RHSM and Insights, before connecting to hosted services.

Actual results

When trying to run `rhc connect` on a system that has `insights-client` installed but not `subscription-manager`, the following is observed:

$ sudo rhc connect
This might take a few seconds.
! Cannot connect to Red Hat Subscription Management
● Skipping connection to Red Hat Insights
● Skipping activation of Remote Host Configuration daemon
Manage your connected systems: https://red.ht/connector
The following errors were encountered during connect:
TYPE   STEP  ERROR  
ERROR  rhsm  cannot connect to Red Hat Subscription Management: unable to parse D-Bus error due to unsupported error name: org.freedesktop.DBus.Error.ServiceUnknown