Run azure tests

devops/pr-gate-os.yml

@@ -17,7 +17,7 @@ stages:
       - template: templates/run-tests-on-multiple-os-py.yml
         parameters:
           pyVersions: ['3.6']
-          testTypes: ['unit']
+          testTypes: ['unit', 'io']
           imageOSs: ['ubuntu-18.04']  # 'windows-latest', 'macos-latest'
 
   - stage: e2e_tests
@@ -26,7 +26,7 @@ stages:
       - template: templates/run-tests-on-multiple-os-py.yml
         parameters:
           pyVersions: ['3.6']
-          testTypes: ['io']
+          testTypes: ['azure']
           imageOSs: ['ubuntu-18.04']  # 'windows-latest', 'macos-latest'
 
   - stage: collect_final_code_coverage