Update to node20

[benwells]

Description:
Node 16 has reached end of life on September 11, 2023.

https://github.com/actions/runner now supports node 20 as of v2.308.0 and we encourage teams to update their actions to run on node 20 runtime by default.

Changelog here

Justification:
Justification or a use case for your proposal.

Are you willing to submit a PR?

[dmitry-shibanov]

Hello @benwells. Thank you for your feature request. We'll take a look on it.

[plocket]

I'm getting warnings in my github action that this action's node version needs to be updated.

[gionn]

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-python@v4

to ease the life of searchers

[dmitry-shibanov]

Hello everyone. For now I'm going to close the issues because it was released in v5.0.0.