Update Azure tests to limit cryptography version. (#31616)

* Revert "Work around cryptography 2.1 requiring pip 8.1.2+"

This reverts commit a10a80b8a3.

* Update Azure tests to limit cryptography version.

packaging/requirements/requirements-azure.txt

@@ -1,4 +1,3 @@
-cryptography>=1.3.4,<2.1  # cryptography 2.1 requires pip 8.1.2+
 packaging
 requests[security]
 azure-mgmt-compute>=2.0.0,<3

test/integration/targets/setup_azure/tasks/main.yml

@@ -1,2 +1,8 @@
+- name: install cryptography requirement
+  # preempt the installation of cryptography from requirements-azure.txt to limit the version installed
+  # requests[security] requires cryptography >= 1.3.4
+  # cryptography 2.1 requires pip 8.1.2+
+  command: pip install cryptography>=1.3.4,<2.1
+
 - pip:
     requirements: '{{ role_path }}/../../../../packaging/requirements/requirements-azure.txt'