Bump urllib3 in /{{cookiecutter.project_slug}}/requirements

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.6.2 to 2.6.3.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.6.2...2.6.3)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

{{cookiecutter.project_slug}}/requirements/base.txt

@@ -6,7 +6,7 @@ snapshot-restore-py==1.0.0
 # Reporting (Errors)
 sentry-sdk==2.48.0
 certifi==2026.1.4
-urllib3==2.6.2
+urllib3==2.6.3
 
 # Serverless WSGI
 serverless-wsgi==3.1.0