🐛 FIX: listdir method with pattern for SSH (#5252)

The `listdir` method of the SSH transport plugin was using
`glob.glob` instead of `self.glob` when a pattern was specified.
This is wrong because it's listing files locally and not on the
remote.
The tests passed because they are running on localhost.
Also, this method is probably never called by AiiDA so it went unnoticed.

aiida/transports/plugins/ssh.py

@@ -1274,7 +1274,7 @@ def listdir(self, path='.', pattern=None):
         else:
             base_dir = os.path.join(self.getcwd(), path)
 
-        filtered_list = glob.glob(os.path.join(base_dir, pattern))
+        filtered_list = self.glob(os.path.join(base_dir, pattern))
         if not base_dir.endswith('/'):
             base_dir += '/'
         return [re.sub(base_dir, '', i) for i in filtered_list]