ci: Update pylintrc

pylintrc

@@ -207,7 +207,7 @@ ignored-classes=optparse.Values,thread._local,_thread._local,gi.repository.GLib.
 # (useful for modules/projects where namespaces are manipulated during runtime
 # and thus existing member attributes cannot be deduced by static analysis. It
 # supports qualified module names, as well as Unix pattern matching.
-ignored-modules=gi.repository,cairo
+ignored-modules=gi.repository,cairo,gajim.gui
 
 # Show a hint with possible names when a member name was not found. The aspect
 # of finding the hint is based on edit distance.