fix pyenv mismatch dependencies error #652

[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/resolver.py", line 743, in _main
[ResolutionFailure]:       resolve_packages(pre, clear, verbose, system, write, requirements_dir, packages, dev)
[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/resolver.py", line 704, in resolve_packages
[ResolutionFailure]:       results, resolver = resolve(
[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/resolver.py", line 685, in resolve
[ResolutionFailure]:       return resolve_deps(
[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/utils.py", line 1369, in resolve_deps
[ResolutionFailure]:       results, hashes, markers_lookup, resolver, skipped = actually_resolve_deps(
[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/utils.py", line 1098, in actually_resolve_deps
[ResolutionFailure]:       resolver.resolve()
[ResolutionFailure]:   File "/home/vsts/work/1/s/.tox/py/lib/python3.9/site-packages/pipenv/utils.py", line 876, in resolve
[ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  You can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: Disabling PEP 517 processing is invalid: project specifies a build backend of setuptools.build_meta in pyproject.toml

ERROR: InvocationError for command /home/vsts/work/1/s/.tox/py/bin/pipenv lock --pre --clear (exited with code 1)
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