click version 8.2.0 broken

[thewhaleking]

Click 8.2.0

Keep stdout and stderr streams independent in CliRunner. Always collect stderr output and never raise an exception. Add a new output stream to simulate what the user sees in its terminal. Removes the mix_stderr parameter in CliRunner. #2522 #2523

Drops the keyword mix_stderr for CliRunner. This is used in btcli/tests/e2e_tests/utils.py:

runner = CliRunner(mix_stderr=False)

Pins the version as under 8.2.0 for now.