Exclude current_task from gathering at close connection

to try unblocking the CI in github actions

Author: cderici

juju/client/connection.py

@@ -451,16 +451,17 @@ async def close(self, to_reconnect=False):
         if self._ws and not self._ws.closed:
             await self._ws.close()
 
-        """
-        Temporarily disabling this to investigate CI blockage
         try:
             log.debug('Gathering all tasks for connection close')
-            await jasyncio.gather(*jasyncio.all_tasks())
+
+            # Avoid gathering the current task
+            tasks_need_to_be_gathered = [task for task in jasyncio.all_tasks()
+                                         if task != jasyncio.current_task()]
+            await jasyncio.gather(*tasks_need_to_be_gathered)
         except jasyncio.CancelledError:
             pass
         except websockets.exceptions.ConnectionClosed:
             pass
-        """
 
         self._pinger_task = None
         self._receiver_task = None

juju/jasyncio.py

@@ -21,7 +21,7 @@
     gather, sleep, wait_for, create_subprocess_exec, subprocess, \
     wait, FIRST_COMPLETED, Lock, as_completed, new_event_loop, \
     get_event_loop_policy, CancelledError, get_running_loop, \
-    create_task, ALL_COMPLETED, all_tasks     # noqa
+    create_task, ALL_COMPLETED, all_tasks, current_task     # noqa
 
 
 def create_task_with_handler(coro, task_name, logger=ROOT_LOGGER):