The save-always input to actions/cache has been deprecated, resulting in warnings, as shown in the following CI run:
https://github.com/opendp/opendp/actions/runs/11223005186/job/31197127537#step:15:2

• setup-renv:

  actions/setup-renv/action.yaml

  Line 48 in 3f55ea1

  save-always: ${{ inputs.bypass-cache == 'never' }}

• setup-r-dependencies:

  actions/setup-r-dependencies/action.yaml

  Line 162 in 3f55ea1

  save-always: ${{ inputs.cache == 'always' }}