Fix nick changes

Due to change again once slixmpp gets a proper API for this
6 jobs for fix-nickchange in 3 minutes and 56 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Lint
failed #30788
allowed to fail
mypyc

00:00:27

failed #30786
allowed to fail
pylint-latest

00:03:00

failed #30787
allowed to fail
pylint-plugins

00:02:34

passed #30785
security-check

00:00:45

 
  Test
passed #30789
pytest-3.7

00:00:42

passed #30790
pytest-latest

00:00:55

 
Name Stage Failure
failed
mypyc Lint
    from mypyc.build import mypycify
File "/usr/local/lib/python3.9/site-packages/mypyc/build.py", line 43, in <module>
from mypyc.codegen import emitmodule
File "/usr/local/lib/python3.9/site-packages/mypyc/codegen/emitmodule.py", line 41, in <module>
from mypyc.transform.uninit import insert_uninit_checks
File "/usr/local/lib/python3.9/site-packages/mypyc/transform/uninit.py", line 5, in <module>
from mypyc.analysis.dataflow import (
ModuleNotFoundError: No module named 'mypyc.analysis'
ERROR: Job failed: exit code 1
failed
pylint-plugins Lint
Finished processing dependencies for poezio==0.13.1.dev770
$ pylint -E plugins
************* Module plugins.upload
plugins/upload.py:53:40: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
************* Module plugins.lastlog
plugins/lastlog.py:27:18: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
************* Module plugins.untrackme
plugins/untrackme.py:17:11: E1136: Value 'Union' is unsubscriptable (unsubscriptable-object)
ERROR: Job failed: exit code 1
failed
pylint-latest Lint
poezio/ui/types.py:103:27: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:104:23: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:105:29: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:108:23: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:109:29: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:110:22: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:112:30: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
poezio/ui/types.py:114:22: E1136: Value 'Optional' is unsubscriptable (unsubscriptable-object)
ERROR: Job failed: exit code 1