adding a new challenge phase and split #3

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: evalai-challenge
	on:
	push:
	branches: [challenge]
	pull_request:
	types: [opened, synchronize, reopened, edited]
	branches: [challenge]
	jobs:
	build:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.7.5
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f github/requirements.txt ]; then pip install -r github/requirements.txt; fi
	- name: Validate challenge
	run: \|
	python3 github/challenge_processing_script.py
	env:
	IS_VALIDATION: 'True'
	GITHUB_CONTEXT: ${{ toJson(github) }}
	GITHUB_AUTH_TOKEN: ${{ secrets.AUTH_TOKEN }}
	- name: Create or update challenge
	run: \|
	python3 github/challenge_processing_script.py
	if: ${{github.event_name == 'push' && success()}}
	env:
	IS_VALIDATION: 'False'
	GITHUB_CONTEXT: ${{ toJson(github) }}
	GITHUB_AUTH_TOKEN: ${{ secrets.AUTH_TOKEN }}

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