Print the language version during CI

Drop support for Node v8.x

Remove mkdirp as a dependency

Use fs.mkdir({ recursive: true }) instead of mkdirp()

Merge pull request #67 from bredtape/patch-1

Drop support for some old Java versions and test up to Java 19

Test Python on Ubuntu 20.04 to try and get some older versions

Upgrade the github actions we depend on

Merge pull request #69 from k1derly/update-mkdirp

Test the binding precedence of the choice operator vs sequences

Fix a link on the website

Update the language versions we test on

Update mkdirp to v3.0 and fix breaking change in require('mkdirp').

Updated PEG link to wikipedia

Change the license to the Mozilla Public License 2.0