chore(deps): update dependency google-api-core to v2.25.1 (googleapis#679)

Author: renovate-bot

requirements.txt

@@ -128,9 +128,9 @@ Deprecated==1.2.18 \
     # via
     #   opentelemetry-api
     #   opentelemetry-semantic-conventions
-google-api-core[grpc]==2.24.2 \
-    --hash=sha256:810a63ac95f3c441b7c0e43d344e372887f62ce9071ba972eacf32672e072de9 \
-    --hash=sha256:81718493daf06d96d6bc76a91c23874dbf2fac0adbbf542831b805ee6e974696
+google-api-core[grpc]==2.25.1 \
+    --hash=sha256:8a2a56c1fef82987a524371f99f3bd0143702fecc670c72e600c1cda6bf8dbb7 \
+    --hash=sha256:d2aaa0b13c78c61cb3f4282c464c046e45fbd75755683c9c525e6e8f7ed0a5e8
     # via
     #   google-cloud-core
     #   google-cloud-spanner