chore(deps): update dependency pandas to v1.4.2 (#513)

Author: renovate-bot

samples/snippets/requirements.txt

@@ -1,5 +1,5 @@
 google-cloud-bigquery-storage==2.13.0
 google-cloud-bigquery==3.0.1
 pandas===1.3.5; python_version == '3.7'
-pandas==1.4.1; python_version >= '3.8'
+pandas==1.4.2; python_version >= '3.8'
 pyarrow==7.0.0