Add a graphviz graph showing the buildscript tasks #8

	name: Build
	on: [push, pull_request]
	jobs:
	build:
	runs-on: ubuntu-22.04
	strategy:
	max-parallel: 20
	matrix:
	version: ["a1.0.1_01", "a1.1.0", "a1.2.0", "a1.2.6", "b1.0", "b1.2", "b1.5", "b1.6", "b1.7", "b1.8", "1.0", "1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9", "1.10", "1.11", "1.12", "1.13"]
	steps:
	- name: checkout repository
	uses: actions/checkout@v3

	- uses: actions/setup-java@v3
	with:
	distribution: 'temurin'
	java-version: '17'

	- name: wrapper validation
	uses: gradle/wrapper-validation-action@v1

	- name: make gradle wrapper executable
	if: ${{ runner.os != 'Windows' }}
	run: chmod +x ./gradlew

	- name: set up python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: install python packages
	run: python -m pip install --upgrade pip

	- name: run feather script
	run: python feather.py clean build javadocJar checkMappings mapNamedJar ${{ matrix.version }}

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