chore(deps): bump urllib3 from 2.5.0 to 2.6.0 in /sparrow

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.5.0...2.6.0)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

sparrow/requirements.txt

@@ -1,6 +1,6 @@
 aiosmtpd==1.4.6
 requests==2.32.4
-urllib3==2.5.0
+urllib3==2.6.0
 idna==3.7
 charset-normalizer==3.3.2
 certifi==2024.7.4