Fetch Java versions with their dates from https://www.java.com/releases/.
This script is using a new dependency: requests-html (https://requests-html.kennethreitz.org/). This is because https://www.java.com/releases/ needs JavaScript to render correctly. And for this to work requests-html automatically downloads Chromium because of its dependency to pyppeteer.
Chromium is downloaded into PYPPETEER_HOME, so the workflow has been modified to set this directory as a subdirectory of ~/.cache. Note that declaring the same environment variable from the python script does not work.
If you push a branch to the main repo, and a branch here with the same
name, then the update script here will use the same branch name instead
of using `main`. This way, we can keep 2 branches in sync and then merge
them.
If a branch does not exist, we'll fallback to cloning master instead
