update pinned versions in autorest_req.txt (#11557)

* update pinned versions in autorest_req.txt

Author: scbedd

eng/autorest_req.txt

@@ -1,8 +1,8 @@
-pytest==5.4.1; python_version >= '3.5'
+pytest==5.4.2; python_version >= '3.5'
 pytest==4.6.9; python_version == '2.7'
 pytest-cov==2.8.1
-pytest-asyncio==0.10.0; python_version >= '3.5'
+pytest-asyncio==0.12.0; python_version >= '3.5'
 isodate==0.6.0
-msrest==0.6.13
+msrest==0.6.14
 aiohttp==3.6.2
-wheel
+wheel==0.34.2