Add an ERROR report group

[matejmatuska]

Currently there is no straightforward way to identify whether a report is an ordinary report or an error report (report generated from an error).

An ERROR group is introduced in leapp.reporting.Groups.ERROR which is used to group error reports. This is utilized in the leapp output to show the number of error reports in the summary. Also error reports in leapp-report.txt are now followed by a "(error)" string similar to inhibitors.

Jira: OAMG-9532

[github-actions]

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[matejmatuska]

Need to keep this as it's a public API.

[matejmatuska]

Example outputs

Ordinary output

Output with an error

Output with an inhibitor

leapp-report.json entry

{
      "title": "Data from the /etc/fstab file is missing.",
      "timeStamp": "2023-08-10T10:57:19.568892Z",
      "hostname": "leapp-20230803161534",
      "actor": "checkfstabxfsoptions",
      "summary": "",
      "audience": "sysadmin",
      "flags": [
        "error"
      ],
      "key": "95285bcedbaf87ae0a438de13d7c6843b470717a",
      "id": "02592bc210235f83b29695cdb0b895c73d74b9994f2421fe90fd30c6c954187d",
      "tags": [],
      "severity": "high"
}

leapp-report.txt entry

Risk Factor: high (error)
Title: Data from the /etc/fstab file is missing.
Summary:
Key: 95285bcedbaf87ae0a438de13d7c6843b470717a

[matejmatuska]

This is included in #840