Github Action docs build fails with `Could not install packages due to an OSError: [Errno 28] No space left on device`

[parthea]

See https://github.com/googleapis/google-cloud-python/actions/runs/7788553716/job/21238201112?pr=12258 in release PR #12258

ERROR: Could not install packages due to an OSError: [Errno 28] No space left on device
Notice:  A new release of pip is available: 23.3.1 -> 24.0
Notice:  To update, run: pip install --upgrade pip
nox > Session docs failed.