Bump urllib3 from 1.25.8 to 1.26.5

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.8 to 1.26.5.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](https://github.com/urllib3/urllib3/compare/1.25.8...1.26.5)

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

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

requirements.ci.txt

@@ -15,7 +15,7 @@ mypy-extensions==0.4.3
 requests==2.23.0
 typed-ast==1.4.1
 typing-extensions==3.7.4.2
-urllib3==1.25.8
+urllib3==1.26.5
 websockets==9.1
 Werkzeug==1.0.1
 yarl==1.4.2

requirements.txt

@@ -50,7 +50,7 @@ twilio==6.38.1
 typed-ast==1.4.1
 typing-extensions==3.7.4.2
 ujson==1.35
-urllib3==1.25.8
+urllib3==1.26.5
 websockets==9.1
 Werkzeug==1.0.1
 yarl==1.4.2