e2e tests: fix attach disks test script (#333)
e2e tests: fix attach disks test script (#333)


GoogleCloudPlatform/compute-image-import,adjackura/compute-image-tools,adjackura/compute-image-tools,GoogleCloudPlatform/compute-image-tools,GoogleCloudPlatform/compute-daisy,GoogleCloudPlatform/compute-image-tools,adjackura/compute-image-tools,GoogleCloudPlatform/compute-image-tools,GoogleCloudPlatform/compute-image-import,zmarano/compute-image-tools,zmarano/compute-image-tools,GoogleCloudPlatform/compute-image-import,GoogleCloudPlatform/compute-daisy,zmarano/compute-image-tools