build(deps): Bump django from 4.2.18 to 4.2.25 in /.kokoro (#426)

Bumps [django](https://github.com/django/django) from 4.2.18 to 4.2.25.
- [Commits](django/django@4.2.18...4.2.25)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 4.2.25
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

packages/gcp-sphinx-docfx-yaml/.kokoro/requirements.in

@@ -1,7 +1,7 @@
 # Library specific extra installations.
 # Extra installations are required to ensure all documentation can be
 # generated and not missed out with the generate-docs script.
-django==4.2.18
+django==4.2.25
 google-cloud-aiplatform[prediction]
 googleapis-common-protos==1.58.0 # pinned for conflict in range specifier.
 grpcio-status==1.48.2 # must be pinned due to protobuf compatibility.

packages/gcp-sphinx-docfx-yaml/.kokoro/requirements.txt

@@ -171,9 +171,9 @@ distlib==0.3.9 \
     --hash=sha256:47f8c22fd27c27e25a65601af709b38e4f0a45ea4fc2e710f65755fa8caaaf87 \
     --hash=sha256:a60f20dea646b8a33f3e7772f74dc0b2d0772d2837ee1342a00645c81edf9403
     # via virtualenv
-django==4.2.18 \
-    --hash=sha256:52ae8eacf635617c0f13b44f749e5ea13dc34262819b2cc8c8636abb08d82c4b \
-    --hash=sha256:ba52eff7e228f1c775d5b0db2ba53d8c49d2f8bfe6ca0234df6b7dd12fb25b19
+django==4.2.25 \
+    --hash=sha256:2391ab3d78191caaae2c963c19fd70b99e9751008da22a0adcc667c5a4f8d311 \
+    --hash=sha256:9584cf26b174b35620e53c2558b09d7eb180a655a3470474f513ff9acb494f8c
     # via -r requirements.in
 docker==6.0.0 \
     --hash=sha256:19e330470af40167d293b0352578c1fa22d74b34d3edf5d4ff90ebc203bbb2f1 \