Version 0.2.4

* Notifications now display errors and the output of the failed command.
* CI configs for GitHub and Woodpecker
* Added `version` subcommand
* Console logging can be disabled by setting `console-disabled` in the
`logging` object
* If Host was not defined for an incomplete `hosts` object, any commands
would fail as they could not look up the values in the SSH config files.

pkg/backy/templates/error.txt

@@ -1,8 +1,12 @@
 Command list {{.listName }} failed on running {{.Command}}.
 
-The error was {{ .Err }}
+{{ if .Err }} The error was {{ .Err }}{{ end }}
 
+{{ if .Output }} The output was {{- range .Output}} {{.}} {{end}} {{end}}
+
+{{ if .CmdsRan }}
 The following commands ran:
 {{- range .CmdsRan}}
     - {{. -}}
-{{end}}
+{{end}}
+{{ end }}