chore(deps): update dependency pyarrow to v5 (#6494)

Co-authored-by: Anthonios Partheniou <partheniou@google.com>
Co-authored-by: Dina Graves Portman <dinagraves@google.com>
Co-authored-by: Leah E. Cole <6719667+leahecole@users.noreply.github.com>

Author: 4 people

bigquery/bqml/requirements.txt

@@ -2,6 +2,6 @@ google-cloud-bigquery[pandas,bqstorage]==2.23.2
 google-cloud-bigquery-storage==2.6.2
 pandas==1.1.5; python_version < '3.7'
 pandas==1.2.0; python_version > '3.6'
-pyarrow==4.0.1
+pyarrow==5.0.0
 flaky==3.7.0
 mock==4.0.3

bigquery/datalab-migration/requirements.txt

@@ -4,4 +4,4 @@ google-cloud-bigquery-storage==2.6.2
 datalab==1.2.0
 ipython==7.18.1; python_version > '3.6'
 ipython==7.16.1; python_version < '3.7'
-pyarrow==4.0.1
+pyarrow==5.0.0

bigquery/pandas-gbq-migration/requirements.txt

@@ -4,5 +4,5 @@ pandas==1.1.5; python_version < '3.7'
 pandas==1.2.4; python_version > '3.6'
 pandas-gbq==0.15.0; python_version > '3.6'
 pandas-gbq==0.14.1; python_version < '3.7'
-pyarrow==4.0.1
+pyarrow==5.0.0
 grpcio==1.39.0

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

@@ -2,4 +2,4 @@ pytest==6.2.4
 pandas==1.1.5; python_version < '3.7'
 pandas==1.2.0; python_version > '3.6'
 google-cloud-bigquery==2.23.2
-pyarrow==4.0.1
+pyarrow==5.0.0