Bump zipp from 3.17.0 to 3.19.1 in /docs

Bumps [zipp](https://github.com/jaraco/zipp) from 3.17.0 to 3.19.1.
- [Release notes](https://github.com/jaraco/zipp/releases)
- [Changelog](https://github.com/jaraco/zipp/blob/main/NEWS.rst)
- [Commits](jaraco/zipp@v3.17.0...v3.19.1)

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

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

docs/requirements.txt

@@ -24,4 +24,4 @@ sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-mermaid==0.9.2
 sphinxcontrib-qthelp==1.0.6
 sphinxcontrib-serializinghtml==1.1.9
-zipp==3.17.0
+zipp==3.19.1