update testing constraints

Author: abbrowne126

testing/constraints-3.7.txt

@@ -4,7 +4,7 @@
 # Pin the version to the lower bound.
 # e.g., if setup.py has "google-cloud-foo >= 1.14.0, < 2.0.0dev",
 # Then this file should have google-cloud-foo==1.14.0
-google-api-core==1.34.0
+google-api-core==2.25.1
 google-auth==2.14.1
 proto-plus==1.22.0
 protobuf==3.20.2

testing/constraints-3.8.txt

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # This constraints file is required for unit tests.
 # List all library dependencies and extras in this file.
-google-api-core==1.34.0
+google-api-core==2.25.1
 proto-plus
 protobuf
 grpc-google-iam-v1