Update dependency Werkzeug to v3.1.3 (#1931)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| Werkzeug ([changelog](https://werkzeug.palletsprojects.com/changes/))
| minor | `==3.0.6` -> `==3.1.3` |

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aws-ts-stackreference-architecture/application/src/backend/requirements.txt

@@ -4,6 +4,6 @@ Flask==3.1.0
 itsdangerous==2.2.0
 Jinja2==3.1.5
 MarkupSafe>=1.0
-Werkzeug==3.0.6
+Werkzeug==3.1.3
 requests==2.32.3
 pg8000==1.13.2