build(deps): bump urllib3 from 1.25.11 to 1.26.5 in /chromium

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.11 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@1.25.11...1.26.5)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

chromium/requirements-rf.txt

@@ -12,4 +12,4 @@ robotframework-sshlibrary==3.4.0
 scp==0.13.2
 selenium==3.141.0
 six==1.15.0
-urllib3==1.25.9
+urllib3==1.26.5

chromium/requirements.txt

@@ -82,7 +82,7 @@ smmap==3.0.4
 sqlparse==0.3.1
 subprocess32==3.5.4
 tornado==6.1
-urllib3==1.25.11
+urllib3==1.26.5
 vine==1.3.0
 voluptuous==0.12.0
 wcwidth==0.2.5