CI: fix the failing "Load extension commands" step

[yugangw-msft]

https://azuredevspacestools.blob.core.windows.net/azdssetup/LKS/dev_spaces_preview-0.1.6-py2.py3-none-any.whl is no good, which fails CI with the following error.
Please fix it and re-enable the step disabled by me

Please ensure you have network connection. Error detail: HTTPSConnectionPool(host='azuredevspacestools.blob.core.windows.net', port=443): Max retries exceeded with url: /azdssetup/LKS/dev_spaces_preview-0.1.6-py2.py3-none-any.whl (Caused by SSLError(CertificateError("hostname 'azuredevspacestools.blob.core.windows.net' doesn't match either of '*.queue.core.windows.net', '*.queue.storage.azure.net', '*.z1.queue.storage.azure.net', '*.z2.queue.storage.azure.net', '*.z3.queue.storage.azure.net', '*.z4.queue.storage.azure.net', '*.z5.queue.storage.azure.net', '*.z6.queue.storage.azure.net', '*.z7.queue.storage.azure.net', '*.z8.queue.storage.azure.net', '*.z9.queue.storage.azure.net', '*.z10.queue.storage.azure.net', '*.z11.queue.storage.azure.net', '*.z12.queue.storage.azure.net', '*.z13.queue.storage.azure.net', '*.z14.queue.storage.azure.net', '*.z15.queue.storage.azure.net', '*.z16.queue.storage.azure.net', '*.z17.queue.storage.azure.net', '*.z18.queue.storage.azure.net', '*.z19.queue.storage.azure.net', '*.z20.queue.storage.azure.net', '*.z21.queue.storage.azure.net', '*.z22.queue.storage.azure.net', '*.z23.queue.storage.azure.net', '*.z24.queue.storage.azure.net', '*.z25.queue.storage.azure.net', '*.z26.queue.storage.azure.net', '*.z27.queue.storage.azure.net', '*.z28.queue.storage.azure.net', '*.z29.queue.storage.azure.net', '*.z30.queue.storage.azure.net', '*.z31.queue.storage.azure.net', '*.z32.queue.storage.azure.net', '*.z33.queue.storage.azure.net', '*.z34.queue.storage.azure.net', '*.z35.queue.storage.azure.net', '*.z36.queue.storage.azure.net', '*.z37.queue.storage.azure.net', '*.z38.queue.storage.azure.net', '*.z39.queue.storage.azure.net', '*.z40.queue.storage.azure.net', '*.z41.queue.storage.azure.net', '*.z42.queue.storage.azure.net', '*.z43.queue.storage.azure.net', '*.z44.queue.storage.azure.net', '*.z45.queue.storage.azure.net', '*.z46.queue.storage.azure.net', '*.z47.queue.storage.azure.net', '*.z48.queue.storage.azure.net', '*.z49.queue.storage.azure.net', '*.z50.queue.storage.azure.net'",),))
The command "./scripts/ci/test_extensions.sh" exited with 1.