build(deps): bump requests from 2.28.1 to 2.31.0 in /synthtool/gcp/templates/python_library/.kokoro (googleapis#867)

Source-Link: googleapis/synthtool@30bd01b
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:9bc5fa3b62b091f60614c08a7fb4fd1d3e1678e326f34dd66ce1eefb5dc3267b

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,4 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:2e247c7bf5154df7f98cce087a20ca7605e236340c7d6d1a14447e5c06791bd6
+  digest: sha256:9bc5fa3b62b091f60614c08a7fb4fd1d3e1678e326f34dd66ce1eefb5dc3267b
+# created: 2023-05-25T14:56:16.294623272Z

.kokoro/requirements.txt

@@ -419,9 +419,9 @@ readme-renderer==37.3 \
     --hash=sha256:cd653186dfc73055656f090f227f5cb22a046d7f71a841dfa305f55c9a513273 \
     --hash=sha256:f67a16caedfa71eef48a31b39708637a6f4664c4394801a7b0d6432d13907343
     # via twine
-requests==2.28.1 \
-    --hash=sha256:7c5599b102feddaa661c826c56ab4fee28bfd17f5abca1ebbe3e7f19d7c97983 \
-    --hash=sha256:8fefa2a1a1365bf5520aac41836fbee479da67864514bdb821f31ce07ce65349
+requests==2.31.0 \
+    --hash=sha256:58cd2187c01e70e6e26505bca751777aa9f2ee0b7f4300988b709f44e013003f \
+    --hash=sha256:942c5a758f98d790eaed1a29cb6eefc7ffb0d1cf7af05c3d2791656dbd6ad1e1
     # via
     #   gcp-releasetool
     #   google-api-core