Update CONTRIBUTING.md #26

	name: Validate New Contributor

	on:
	pull_request:
	types: [opened, edited]
	branches:
	- new_contributor_validations # TODO: use main
	paths:
	- 'CONTRIBUTING.md'
	workflow_call:
	inputs:
	pull-request-number:
	required: true
	type: number
	outputs:
	email-address:
	description: "The new contributor's email address."
	value: ${{ jobs.validate-new-contributor.outputs.email-address }}

	env:
	PYTHON_VERSION: 3.11
	WORKING_DIR: .github/scripts/python/validate-new-contributor

	jobs:
	validate-new-contributor:
	runs-on: ubuntu-latest
	outputs:
	email-address: ${{ steps.validate-new-contributor.outputs.EMAIL_ADDRESS }}
	steps:
	- name: ⚙️ Set Pull Request Number
	run: \|
	if [ "${{ github.event_name }}" == "pull_request" ]
	then
	echo "PR_NUM=${{ github.event.pull_request.number }}" >> $GITHUB_ENV
	else
	echo "PR_NUM=${{ inputs.pull-request-number }}" >> $GITHUB_ENV
	fi

	- name: 🛫 Checkout
	uses: actions/checkout@v4
	with:
	ref: refs/pull/${{ env.PR_NUM }}/head

	- uses: ocadotechnology/codeforlife-workspace/.github/actions/python/setup-environment@new_contributor_validations # TODO: use @main
	with:
	checkout: 'false'
	python-version: ${{ env.PYTHON_VERSION }}
	working-directory: ${{ env.WORKING_DIR }}

	- name: 🕵️ Validate New Contributor
	id: validate-new-contributor
	working-directory: ${{ env.WORKING_DIR }}
	run: pipenv run python .

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