Bump zipp from 3.20.2 to 3.21.0

Bumps [zipp](https://github.com/jaraco/zipp) from 3.20.2 to 3.21.0.
- [Release notes](https://github.com/jaraco/zipp/releases)
- [Changelog](https://github.com/jaraco/zipp/blob/main/NEWS.rst)
- [Commits](jaraco/zipp@v3.20.2...v3.21.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: requirements.txt

@@ -525,5 +525,5 @@ zhinst-toolkit==0.7.0
     # via zhinst-qcodes
 zhinst-utils==0.5.0
     # via zhinst-toolkit
-zipp==3.20.2
+zipp==3.21.0
     # via importlib-metadata