Use opset_version 16 instead of 18 since 16 is the latest supported v… #756

	# Basic linux ci workflow for model zoo.
	# Runs model checker for models updated in the PR

	name: Linux CI

	on:
	push:
	branches: [ main, new-models]
	pull_request:
	branches: [ main, new-models]

	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.11']
	architecture: ['x64']

	steps:
	- uses: actions/checkout@v2
	name: Checkout repo

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	architecture: ${{ matrix.architecture }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install onnx onnxruntime requests py-cpuinfo
	# Print CPU info for debugging ONNX Runtime inference difference
	python -m cpuinfo

	- name: Test updated ONNX_HUB_MANIFEST.json
	run: \|
	python -m pip install typepy BeautifulSoup4 markdown pandas
	python workflow_scripts/generate_onnx_hub_manifest.py --target diff --drop
	git diff --exit-code -- ONNX_HUB_MANIFEST.json \|\| { echo 'Please use "python workflow_scripts/generate_onnx_hub_manifest.py --target diff" to update ONNX_HUB_MANIFEST.json.' ; exit 1; }

	- name: Test new models by onnx and onnxruntime
	run: \|
	python workflow_scripts/test_models.py --target all --drop

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