Bump urllib3 from 1.25.7 to 1.25.8 in /requirements

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.7 to 1.25.8.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.25.7...1.25.8)

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

Author: dependabot[bot]

requirements/local.txt

@@ -22,7 +22,7 @@ redis==3.3.11
 requests==2.22.0
 six==1.15.0
 SQLAlchemy==1.3.12
-urllib3==1.25.7
+urllib3==1.25.8
 vine==1.3.0
 Werkzeug==0.16.0
 zipp==0.6.0

requirements/production.txt

@@ -22,7 +22,7 @@ redis==3.3.11
 requests==2.22.0
 six==1.15.0
 SQLAlchemy==1.3.12
-urllib3==1.25.7
+urllib3==1.25.8
 vine==1.3.0
 Werkzeug==0.16.0
 zipp==0.6.0