Pull Request: Update to actions/cache@v4 by cmb69 · Pull Request #1120 · php/web-php · GitHub
Author: cmb69
v3 is meant for nodejs 16, but that is no longer supported by hosted GH runners[1]. To avoid potential instabilities, we update to v4.
[1] <https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/>