Github Action fails due to getpass.py

[Gary Stidston-Broadbent]

When trying to use a Github Action to publish to Pypi.org, I receive the following error:

Run pdm publish -u __token__ -p ***
/opt/hostedtoolcache/Python/3.8.12/x64/lib/python3.8/getpass.py:91: GetPassWarning: Can not control echo on the terminal.
Password:
  passwd = fallback_getpass(prompt, stream)
Warning: Password input may be echoed.
 [Abort]: 
Add '-v' to see the detailed traceback
Error: Process completed with exit code 1.