nightly-fa10dcf1-ls82

LinuxServer Changes:

Pin beetcamp to 0.19.2 until upstream requirements fixed.

beets Changes:

Fix docs build (#5492)

Seems like readthedocs build expects docs dependencies to be available
as an extra, see one of the failing builds:
https://app.readthedocs.org/projects/beets/builds/26079213/.

You can see this has been failing due to missing 'pydata_sphinx_theme'
which is one of our dependencies:

    raise ThemeError(__('no theme named %r found (missing theme.toml?)') % name)
    sphinx.errors.ThemeError: no theme named 'pydata_sphinx_theme' found (missing theme.toml?)
    Theme error:
    no theme named 'pydata_sphinx_theme' found (missing theme.toml?)