chore(deps): update dependency pyarrow to v7 (GoogleCloudPlatform#7429)

* chore(deps): update dependency pyarrow to v7

* chore(deps): pin pyarrow to lower version

* chore(deps): pin pyarrow to lower version

* chore(deps): pin pyarrow version for 3.6 and below

* chore(deps): pin pyarrow version for 3.6 and below

* chore(deps): pin pyarrow for 3.6 and below

* chore(deps): move pyarrow above google-cloud-bigquery

* chore(deps): pin pyarrow to 6 for dependency conflict

Co-authored-by: Dan Lee <[email protected]>

Author: renovate-bot

data-science-onramp/data-processing/requirements-test.txt

@@ -1,5 +1,6 @@
 pytest==6.2.4
 pandas==1.1.5; python_version < '3.7'
 pandas==1.3.5; python_version > '3.6'
+pyarrow==6.0.1; python_version < '3.7'
+pyarrow==7.0.0; python_version > '3.6'
 google-cloud-bigquery==2.33.0
-pyarrow==6.0.1