Bump urllib3 from 1.25.3 to 1.26.5 (#40)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.3 to 1.26.5.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.25.3...1.26.5)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Hao Xue <57418867+haoxue1108@users.noreply.github.com>

requirements3.txt

@@ -46,7 +46,7 @@ slackclient==1.0.7        # via -r requirements.in
 statsd==3.2.1             # via -r requirements.in
 toml==0.10.2              # via pytest
 typing-extensions==3.10.0.0  # via importlib-metadata
-urllib3==1.25.3           # via requests
+urllib3==1.26.5           # via requests
 websocket-client==0.56.0  # via slackclient
 werkzeug==0.15.5          # via flask
 zipp==3.4.1               # via importlib-metadata