chore(deps): bump jinja2 from 3.0.3 to 3.1.3 in /.kokoro (#19222)

Bumps [jinja2](https://github.com/pallets/jinja) from 3.0.3 to 3.1.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.0.3...3.1.3)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.kokoro/requirements.in

@@ -6,7 +6,7 @@ cryptography==41.0.4
 cachetools==4.2.4
 cffi==1.15.1
 jeepney==0.7.1
-jinja2==3.0.3
+jinja2==3.1.3
 markupsafe==2.0.1
 keyring==23.4.1
 packaging==21.3

.kokoro/requirements.txt

@@ -241,9 +241,9 @@ jeepney==0.7.1 \
     #   -r requirements.in
     #   keyring
     #   secretstorage
-jinja2==3.0.3 \
-    --hash=sha256:077ce6014f7b40d03b47d1f1ca4b0fc8328a692bd284016f806ed0eaca390ad8 \
-    --hash=sha256:611bb273cd68f3b993fabdc4064fc858c5b47a973cb5aa7999ec1ba405c87cd7
+jinja2==3.1.3 \
+    --hash=sha256:7d6d50dd97d52cbc355597bd845fabfbac3f551e1f99619e39a35ce8c370b5fa \
+    --hash=sha256:ac8bd6544d4bb2c9792bf3a159e80bba8fda7f07e81bc3aed565432d5925ba90
     # via
     #   -r requirements.in
     #   gcp-releasetool