Add back disabled tests from slb ADO

1 job for slb-disabled-tests in 7 minutes and 23 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
failed build #254916

00:07:23

 
Name Stage Failure
failed
build Test
FAILED tests/storage/test_blob_storage_az.py::test_downloading_successfully_uploaded_blob[input_data1-expected content 123456789]
FAILED tests/storage/test_blob_storage_az.py::test_download_not_existing_blob_should_throw
FAILED tests/storage/test_blob_storage_az.py::test_invalid_storage_container
============= 4 failed, 12 passed, 1 skipped in 327.74s (0:05:27) ==============
Uploading artifacts for failed job
Uploading artifacts...
report.xml: found 1 matching files and directories

Uploading artifacts as "junit" to coordinator... ok
id=254916 responseStatus=201 Created token=QSASw94x
ERROR: Job failed: exit code 1