We always use the same directory for terraform fixtures, so it's quite
easy to figure out its path from a pytest fixture by inspecting the
stack. This commit implements this functionality and decreases the
amount of boilerplate needed to write a test.
(Ported from fast)
* add missing role to GKE nodepool service account
* refactor plan test runners
* remove spurious print statements from test
* use concurrency via locking the fixture dir
* add filelock to test requirements
* fix pytest arg in cloud build
* and yet another dep and args fix
* fix e2e runner, use correct runner in env e2e test
* revert parallel test changes, split modules and environments triggers
* I should stop experimenting in PRs