Udpate github actions to fix deprecation warnings

[acrespo]

Warnings about depreacted save-state and set-output. But also about node12 which is deprecated and will be forced to run on node16

See:

• https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/
• https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/