updates samples/notebooks/reqs

Author: chalmerlowe

samples/notebooks/requirements-test.txt

@@ -1,4 +1,3 @@
 google-cloud-testutils==1.5.0
-pytest===7.4.4; python_version == '3.7'
-pytest==8.3.4; python_version >= '3.8'
+pytest==8.3.4; python_version >= '3.9'
 mock==5.1.0

samples/notebooks/requirements.txt

@@ -2,13 +2,7 @@ bigquery-magics==0.5.0
 db-dtypes==1.3.1
 google-cloud-bigquery==3.27.0
 google-cloud-bigquery-storage==2.27.0
-ipython===7.31.1; python_version == '3.7'
-ipython===8.0.1; python_version == '3.8'
 ipython===8.18.1; python_version >= '3.9'
-matplotlib===3.5.3; python_version == '3.7'
-matplotlib===3.7.4; python_version == '3.8'
 matplotlib===3.9.2; python_version == '3.9'
 matplotlib==3.10.0; python_version >= '3.10'
-pandas===1.3.5; python_version == '3.7'
-pandas===2.0.3; python_version == '3.8'
 pandas==2.2.3; python_version >= '3.9'