chore(deps): update dependency ipython to v7.13.0 [(#3177)](GoogleCloudPlatform/python-docs-samples#3177)

Co-authored-by: Leah E. Cole <[email protected]>

Author: 2 people

samples/snippets/requirements.txt

@@ -1,6 +1,5 @@
 google-cloud-bigquery[pandas]==1.20.0
 google-auth-oauthlib==0.4.0
-ipython==7.8.0
+ipython==7.13.0
 matplotlib==3.2.1
 pytz==2019.3
-