azdev is broken due to pytest new version 6.1.0

[qwordy]

When pytest upgrates from 6.0.2 to 6.1.0, azdev is broken. https://docs.pytest.org/en/stable/changelog.html#changelog

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/runpy.py", line 87, in _run_code
    self._inner_hookexec = lambda hook, methods, kwargs: hook.multicall(
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/pluggy/callers.py", line 203, in _multicall
    gen.send(outcome)
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/_pytest/helpconfig.py", line 100, in pytest_cmdline_parse
    config = outcome.get_result()  # type: Config
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/pluggy/callers.py", line 80, in get_result
    raise ex[1].with_traceback(ex[2])
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/_pytest/config/__init__.py", line 1003, in pytest_cmdline_parse
    self.parse(args)
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/_pytest/config/__init__.py", line 1280, in parse
    self._preparse(args, addopts=addopts)
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/_pytest/config/__init__.py", line 1172, in _preparse
    self.pluginmanager.load_setuptools_entrypoints("pytest11")
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/pluggy/manager.py", line 299, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/importlib/metadata.py", line 77, in load
    module = import_module(match.group('module'))
  File "/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/_pytest/assertion/rewrite.py", line 171, in exec_module
    exec(co, module.__dict__)
  File "/home/vsts/work/1/env/lib/python3.8/site-packages/pytest_rerunfailures.py", line 7, in <module>
    from _pytest.resultlog import ResultLog
ModuleNotFoundError: No module named '_pytest.resultlog'