[leapp] improve plugin enablement and add more collected files

The `leapp-repository` package was renamed to `leapp-upgrade-elXtoY`
in [1], and while we could list all possible combinations here,
the main `leapp` package should be enough to trigger this plugin

While at it, also enable plugin when /var/lib/leapp exists, as
after an upgrade is performed, users often uninstall the leapp packages,
but it can still be beneficial for SOS to collect data about the fact
that this is a system that was upgraded (and data about the upgrade) and
/var/lib/leapp shows exactly that.

Also include /etc/migration-results and /var/log/leapp/answerfile in
collected files.

[1] oamg/leapp-repository@924c398

Signed-off-by: Evgeni Golov <[email protected]>

sos/report/plugins/leapp.py

@@ -16,10 +16,13 @@ class Leapp(Plugin, RedHatPlugin):
     short_desc = 'Leapp upgrade handling tool'
 
     plugin_name = 'leapp'
-    packages = ('leapp', 'leapp-repository')
+    packages = ('leapp',)
+    files = ('/var/lib/leapp',)
 
     def setup(self):
         self.add_copy_spec([
+            '/etc/migration-results',
+            '/var/log/leapp/answerfile',
             '/var/log/leapp/dnf-debugdata/',
             '/var/log/leapp/leapp-preupgrade.log',
             '/var/log/leapp/leapp-upgrade.log',