save-always has been added to actions/cache

[alkino]

3 weeks ago the https://github.com/actions/cache gain a save-always that seems to make this repository no more useful.

The commit: actions@b1378c8
The version: https://github.com/actions/cache/releases/tag/v4.0.0

Am I right or there is more in this action that only this option?

[palfrey]

One little problem: it doesn't work. See actions#1315