Run tests in the windows-latest CI action

[shnewto]

atm the tests aren't being run for windows in our CI action here

pgn/.github/workflows/ci.yaml

Lines 39 to 56 in b976422

	windows-latest:
	runs-on: windows-latest
	steps:
	- name: checkout repo
	uses: actions/checkout@v2
	- name: install elm
	run: |
	npm install -g elm
	- name: build
	run: |
	elm make
	# TODO: figure out why this fails and how to make it succeed when it's supposed to :)
	# - name: install elm-test
	# run: |
	# npm install -g elm-test
	# - name: test
	# run: |
	# elm-test

for reference, my attempt at running them in the action is commented out under that TODO and from what i've seen so far, the tests that are failing on windows are succeeding with the same random seed when I run locally on macos so I think there's just something else going on that I don't know about how windows does these things.

i don't have access to a windows machine so I can check to see if things would pass locally but I'd appreciate an assist from anyone who does and can help out!