Update action to use Node 20 or newer

[mhemani-reach]

Node 16 is EOL and Github Actions is deprecating it in Spring 2024. Please update the action to Node 20.
More info: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/

[naresh-gn]

Created a PR to upgrade to node20, if someone from admin can take a look at it #202
@mathieudutour fyi

[dfeldick]

Please? Would really like to see the warnings removed from my gitlab action.

[ayyadalaa]

Same, I wish this gets addressed.

[mhemani-reach]

Github will be migrating to run all actions by default on Node 20 by May 13, 2024
@mathieudutour can you review and merge #202 if there's no remaining blockers?

https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/