[Bug 2012110] Re: Software updater displays "You stopped the check for updates"

[Ben Baker]

@mrdc76 I also experience this in Lunar. This is the output I get when running `update-manager` from Terminal:
```
$ update-manager
WARNING:root:failed to process /proc/version_signature.
WARNING:root:Failed to parse kernel: 6.3.0-acso
WARNING:root:unable to determine enough kernel information to check livepatch support
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/defer/__init__.py", line 483, in _inline_callbacks
    result = gen.throw(excep)
             ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py", line 152, in update
    trans = yield self.client.update_cache(defer=True)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
```

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https://bugs.launchpad.net/bugs/2012110

Title:
  Software updater displays "You stopped the check for updates"

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  Expected behavior: Display a list of updates.
  What happens: Dialog box says "You stopped the check for updates".
  Expected behavior: When I choose "Check again" then displays a list of updates.
  What happens: Displays "You stopped the check for updates".

  apt-get update/upgrade works. But software-updater has same behavior after I run it.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.3
  Aptdaemon:
   
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 22.04
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'launch-count' b'67'
   b'com.ubuntu.update-manager' b'launch-time' b'int64 1679093993'
  InstallationDate: Installed on 2023-02-27 (18 days ago)
  InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230223)
  Package: update-manager 1:22.04.10
  PackageArchitecture: all
  ProcVersionSignature: Ubuntu 5.19.0-35.36~22.04.1-generic 5.19.17
  Tags:  wayland-session jammy
  Uname: Linux 5.19.0-35-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True

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