GitHub Action - Run tests

Run Silverstripe CI matrix tests

Only intended to be used within gha-ci. The inputs all come from the matrix generated as a part of that workflow.

GitHub job permissions required: none

Name		Name	Last commit message	Last commit date
Latest commit History 80 Commits
.github		.github
LICENSE		LICENSE
README.md		README.md
action.yml		action.yml
behat.php		behat.php
behat_headless.yml		behat_headless.yml
install-nvm.sh		install-nvm.sh

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