chore(deps): update dependency google-cloud-containeranalysis to v1.0.2 [(#4367)](GoogleCloudPlatform/python-docs-samples#4367)

Author: renovate-bot

samples/snippets/requirements.txt

@@ -1,5 +1,5 @@
 google-cloud-pubsub==1.7.0
-google-cloud-containeranalysis==1.0.1
+google-cloud-containeranalysis==1.0.2
 grafeas==0.4.1
 pytest==5.3.0; python_version > "3.0"
 pytest==4.6.6; python_version < "3.0"