build(deps): bump pymemcache from 3.5.1 to 3.5.2

Bumps [pymemcache](https://github.com/pinterest/pymemcache) from 3.5.1 to 3.5.2.
- [Release notes](https://github.com/pinterest/pymemcache/releases)
- [Changelog](https://github.com/pinterest/pymemcache/blob/master/ChangeLog.rst)
- [Commits](https://github.com/pinterest/pymemcache/compare/v3.5.1...v3.5.2)

---
updated-dependencies:
- dependency-name: pymemcache
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -55,7 +55,7 @@ protobuf==3.20.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycryptodome==3.14.1
-pymemcache==3.5.1
+pymemcache==3.5.2
 pyparsing==3.0.7
 python-dateutil==2.8.2
 python-tumblpy==1.1.4