Bump setuptools from 57.5.0 to 65.5.1 in /docs (#620)

Bumps [setuptools](https://github.com/pypa/setuptools) from 57.5.0 to 65.5.1.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/CHANGES.rst)
- [Commits](pypa/setuptools@v57.5.0...v65.5.1)

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

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docs/requirements.txt

@@ -1,4 +1,4 @@
 sphinx==2.0.0
 recommonmark==0.5.0
-setuptools==57.5.0
+setuptools==65.5.1
 aws-service-catalog-puppet