add upgrade (also major) and inspect command

[mbussolotto]

added command:

mgradm inspect --help
Extract information from image and deployment

Usage:
  mgradm inspect [flags]

mgradm upgrade podman --help
Upgrade a local server on podman

Usage:
  mgradm upgrade podman [flags]
  mgradm upgrade podman [command]

Available Commands:
  list        list available tag for an image

mgradm upgrade podman list --help
List avaialable tag for and image

Usage:
  mgradm upgrade podman list [flags]

mgradm upgrade kubernetes --help
Upgrade a local server on kubernetes

Usage:
  mgradm upgrade kubernetes [flags]

Known Issue:

• migration image URL autodetection is wrong using --image IMAGE_URL:TAG . Workaround is using --image IMAGE_URL --tag IMAGE_TAG FIXED

Running smdba system-check autotuning...
/bin/sh: /usr/bin/postmaster: No such file or directory
General error:
	Unknown database backend. Please check /etc/rhn/rhn.conf configuration file.

already fixed in next smdba >= 1.7.13

Issue: https://github.com/SUSE/spacewalk/issues/22110