Adds updates including compute [(#2436)](#2436)

* Adds updates including compute

* Python 2 compat pytest

* Fixing weird \r\n issue from GH merge

* Put asset tests back in

* Re-add pod operator test

* Hack parameter for k8s pod operator

Author: gguuss

container_registry/container_analysis/snippets/requirements.txt

@@ -1,6 +1,6 @@
-google-cloud-pubsub == 0.42.1
-google-cloud-containeranalysis == 0.1.0
-grafeas == 0.1.0
-pytest
-flaky
-mock
+google-cloud-pubsub==1.0.0
+google-cloud-containeranalysis==0.3.0
+grafeas==0.1.0
+pytest==5.1.3
+flaky==3.6.1
+mock==3.0.5