Bump urllib3 from 1.26.4 to 1.26.5 in /requirements

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.4 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@1.26.4...1.26.5)

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

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

Author: dependabot[bot]

requirements/dev35.txt

@@ -213,7 +213,7 @@ twine==1.15.0
     # via
     #   -r requirements/dev.in
     #   setuptools-twine
-urllib3==1.26.4
+urllib3==1.26.5
     # via requests
 virtualenv==20.4.3
     # via tox

requirements/dev36.txt

@@ -221,7 +221,7 @@ twine==3.4.1
     #   setuptools-twine
 typing-extensions==3.7.4.3
     # via importlib-metadata
-urllib3==1.26.4
+urllib3==1.26.5
     # via requests
 virtualenv==20.4.3
     # via tox

requirements/dev37.txt

@@ -216,7 +216,7 @@ twine==3.4.1
     #   setuptools-twine
 typing-extensions==3.7.4.3
     # via importlib-metadata
-urllib3==1.26.4
+urllib3==1.26.5
     # via requests
 virtualenv==20.4.3
     # via tox

requirements/dev38.txt

@@ -209,7 +209,7 @@ twine==3.4.1
     # via
     #   -r requirements/dev.in
     #   setuptools-twine
-urllib3==1.26.4
+urllib3==1.26.5
     # via requests
 virtualenv==20.4.3
     # via tox

requirements/dev39.txt

@@ -209,7 +209,7 @@ twine==3.4.1
     # via
     #   -r requirements/dev.in
     #   setuptools-twine
-urllib3==1.26.4
+urllib3==1.26.5
     # via requests
 virtualenv==20.4.3
     # via tox