Fix deploy instruction for Azure to comply with SGX 2.17.

[sarutak]

Description

The instruction for deployment on Azure doesn't work due to SGX 2.14 is used in the docker image teaclave/teaclave-build-ubuntu-1804-sgx-2.14. Now that SGX 2.17 is required, teaclave/teaclave-build-ubuntu-1804-sgx-2.17.1 should be used.

Type of change (select or add applied and delete the others)

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] API change with a documentation update
• [ ] Additional test coverage
• [ ] Code cleanup or just sync with upstream third-party crates

How has this been tested?

Confirmed docker run passes with the new instruction.

Checklist

• [x] Fork the repo and create your branch from master.
• [x] If you've added code that should be tested, add tests.
• [x] If you've changed APIs, update the documentation.
• [x] Ensure the tests pass (see CI results).
• [x] Make sure your code lints/format.