Migrate update-s3-html job to test-infra #1

	name: Update S3 HTML indices for download.pytorch.org

	on:
	pull_request:
	paths:
	- .github/workflows/update-s3-html.yml
	schedule:
	# Update the indices every 30 minutes
	- cron: "/30 * * *"
	workflow_dispatch:

	permissions:
	id-token: write
	contents: read

	jobs:
	update:
	runs-on: ubuntu-22.04
	environment: pytorchbot-env
	strategy:
	matrix:
	prefix: ["whl", "whl/test", "whl/nightly", "whl/lts/1.8"]
	fail-fast: False
	container:
	image: continuumio/miniconda3:4.12.0
	steps:
	- name: configure aws credentials
	id: aws_creds
	uses: aws-actions/configure-aws-credentials@v3
	with:
	role-to-assume: arn:aws:iam::308535385114:role/gha_workflow_s3_update
	aws-region: us-east-1
	- name: Checkout repository test-infra
	uses: actions/checkout@v3
	with:
	repository: pytorch/test-infra
	ref: ${{ github.ref }}
	- name: Update s3 html index
	run: \|
	set -ex

	# Create Conda Environment
	conda create --quiet -y --prefix run_env python="3.8"
	conda activate ./run_env

	# Install requirements
	pip install -r s3_management/requirements.txt
	python s3_management/manage.py --generate-pep503 ${{ matrix.prefix }}

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