Bump zipp from 3.7.0 to 3.8.0

Bumps [zipp](https://github.com/jaraco/zipp) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/jaraco/zipp/releases)
- [Changelog](https://github.com/jaraco/zipp/blob/main/CHANGES.rst)
- [Commits](https://github.com/jaraco/zipp/compare/v3.7.0...v3.8.0)

---
updated-dependencies:
- dependency-name: zipp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -107,5 +107,5 @@ wcwidth==0.2.5
 websockets==10.2
 whitenoise==6.0.0
 whoosh==2.7.4
-zipp==3.7.0; python_version < '3.9'
+zipp==3.8.0; python_version < '3.9'
 zope.interface==5.4.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'