Bump propcache from 0.2.0 to 0.2.1 (#131)

Bumps [propcache](https://github.com/aio-libs/propcache) from 0.2.0 to 0.2.1.
- [Release notes](https://github.com/aio-libs/propcache/releases)
- [Changelog](https://github.com/aio-libs/propcache/blob/master/CHANGES.rst)
- [Commits](aio-libs/propcache@v0.2.0...v0.2.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -16,7 +16,7 @@ idna==3.10
 iso8601==2.1.0
 kopf==1.37.3
 multidict==6.1.0
-propcache==0.2.0
+propcache==0.2.1
 python-json-logger==2.0.7
 PyYAML==6.0.2
 sniffio==1.3.1