chore(deps): update dependency pandas to v1.1.4 (#355)

Author: renovate-bot

samples/snippets/requirements.txt

@@ -5,6 +5,6 @@ grpcio==1.33.2
 ipython==7.16.1; python_version < '3.7'
 ipython==7.17.0; python_version >= '3.7'
 matplotlib==3.3.2
-pandas==1.1.3
+pandas==1.1.4
 pyarrow==1.0.1
 pytz==2020.1