We don't need the absolute path for any of the commands in this script
so long as we `cd` into the source directory path. Doing this removes
the need for weird platform-specific tricks we have to do with
realpath vs GNU realpath.
The E2E test runner is running from the root of the Nomad
repository. Make this run independent of the working directory for
convenience of developers and the test runner.
Scripts for running playwright tests in a Docker container that has
chromium and webkit preinstalled. Includes a basic smoke test for
authentication so that we can be sure the test rig is working
end-to-end. Wiring this up in CI will be in an upcoming PR.
