CLI Tools: Remove race condition in gcsfuse test (#1708)
CLI Tools: Remove race condition in gcsfuse test (#1708)

This PR removes that race condition by supplying a pre-cancelled context, and confirming that a retry isn't performed.
GoogleCloudPlatform/compute-daisy,adjackura/compute-image-tools,zmarano/compute-image-tools,GoogleCloudPlatform/compute-image-import,adjackura/compute-image-tools,zmarano/compute-image-tools,GoogleCloudPlatform/compute-image-import,GoogleCloudPlatform/compute-image-tools,GoogleCloudPlatform/compute-daisy,zmarano/compute-image-tools,adjackura/compute-image-tools,GoogleCloudPlatform/compute-image-tools,GoogleCloudPlatform/compute-image-import,GoogleCloudPlatform/compute-image-tools