Broken l10n check in tpo/web: python importing error

The check for new strings is not working anymore.

It seems to install the package python3-requests, but when trying to import the module requests to python, is unable to do so:

Traceback (most recent call last):
  File "l10n/bin/check_po_status.py", line 24, in <module>
    import requests
ModuleNotFoundError: No module named 'requests'

See for example the failed job: https://gitlab.torproject.org/tpo/web/support/-/jobs/84432

That is hosted at https://gitlab.torproject.org/tpo/tpa/ci-templates/-/blob/main/lektor.yml#L94