Bump urllib3 from 1.26.15 to 1.26.18 in /analytics-api (#2317)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.15 to 1.26.18.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.15...1.26.18)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

analytics-api/requirements.txt

@@ -51,5 +51,5 @@ threadloop==1.0.2
 thrift==0.16.0
 tornado==6.3.2
 typing_extensions==4.5.0
-urllib3==1.26.15
+urllib3==1.26.18
 zipp==3.15.0