Update run_tests.yaml: pip install fails now, try another pip cmd #365

	# build and test some end points
	name: Build and deploy docs for fmu-sumo

	on:
	pull_request:
	branches: [main, docs]
	push:
	branches: [main, docs]

	jobs:
	build_pywheels:
	name: Build docs with Python ${{ matrix.python-version }} on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	python-version: ["3.8.17"]
	os: [ubuntu-latest]

	steps:
	- uses: actions/checkout@v1

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install and build docs
	run: \|
	pip install pip -U && pip install wheel -U
	pip install .[docs]
	python setup.py build_sphinx

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