fix: e2e release tests (#555)
fix: e2e release tests (#555)

The end-to-end tests targeting the latest release are failing. The issue is on the latest v0.4.0 release, we removed the `cloudshell_working_dir`argument, which is expected in the test scripts. This PR removes that variable so the tests will run again
GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox,GoogleCloudPlatform/cloud-ops-sandbox