update all schemas to rc4 #235

	name: Test reproschema activities

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: '*'

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.8
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools
	pip install reproschema requests_cache
	- name: JSON linter
	run: \|
	python tests/jsonParser.py
	- name: Test with pyshacl
	run: \|
	reproschema -l DEBUG validate activities

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