Bump pyjwt from 2.12.1 to 2.13.0 in /samples/adk-sql-agent

Bumps [pyjwt](https://github.com/jpadilla/pyjwt) from 2.12.1 to 2.13.0.
- [Release notes](https://github.com/jpadilla/pyjwt/releases)
- [Changelog](https://github.com/jpadilla/pyjwt/blob/master/CHANGELOG.rst)
- [Commits](jpadilla/pyjwt@2.12.1...2.13.0)

---
updated-dependencies:
- dependency-name: pyjwt
  dependency-version: 2.13.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

samples/adk-sql-agent/requirements.txt

@@ -1399,9 +1399,9 @@ pydantic-settings==2.14.0 \
     --hash=sha256:24285fd4b0e0c06507dd9fdfd331ee23794305352aaec8fc4eb92d4047aeb67d \
     --hash=sha256:fc8d5d692eb7092e43c8647c1c35a3ecd00e040fcf02ed86f4cb5458ca62182e
     # via mcp
-pyjwt==2.12.1 \
-    --hash=sha256:28ca37c070cad8ba8cd9790cd940535d40274d22f80ab87f3ac6a713e6e8454c \
-    --hash=sha256:c74a7a2adf861c04d002db713dd85f84beb242228e671280bf709d765b03672b
+pyjwt==2.13.0 \
+    --hash=sha256:41571c89ca91598c79e8ef18a2d07367d4810fbbd6f637794879baf1b7703423 \
+    --hash=sha256:66adcc2aff09b3f1bbd95fc1e1577df8ac8723c978552fd43304c8a290ac5728
     # via mcp
 pyopenssl==26.1.0 \
     --hash=sha256:115563879b2c8ccb207975705d3e491434d8c9d7c79667c902ecbf5f3bbd2ece \