load 1.6.0

• Add support for engine reference identity using CLI. Engine reference identity can be set using --engine-ref-id-type and --engine-ref-ids argument in 'az load test create' and 'az load test update' commands. Engine reference identity set in YAML config file under key referenceIdentities with kind as Engine will also be honoured.

SHA256 hashes of the release artifacts:

0b26bd5db93acc7e579fb3a78a8a40a5397b2b689f52432ae8c4c8da9ef14adb load-1.6.0-py3-none-any.whl