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

[IvanZosimov]

Hi, @benwells 👋 Thanks for the notification!

[LVMVRQUXL]

+1 for this issue.

Here's an example of workflow using actions/setup-java@v3.11.0 that shows the corresponding deprecation notice: Kotools Types Integration #370.