Bump urllib3 from 1.25.11 to 1.26.5 in /elastic-snapshot

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] <support@github.com>

Author: dependabot[bot]

elastic-snapshot/requirements.txt

@@ -2,4 +2,4 @@ certifi==2020.6.20
 chardet==3.0.4
 idna==2.10
 requests==2.24.0
-urllib3==1.25.11
+urllib3==1.26.5