chore(deps): bump zipp from 3.17.0 to 3.19.1 in /.kokoro (#559)

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: indirect
...

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

Author: dependabot[bot]

.kokoro/requirements.txt

@@ -491,7 +491,7 @@ wheel==0.42.0 \
     --hash=sha256:177f9c9b0d45c47873b619f5b650346d632cdc35fb5e4d25058e09c9e581433d \
     --hash=sha256:c45be39f7882c9d34243236f2d63cbd58039e360f85d0913425fbd7ceea617a8
     # via -r requirements.in
-zipp==3.17.0 \
-    --hash=sha256:0e923e726174922dce09c53c59ad483ff7bbb8e572e00c7f7c46b88556409f31 \
-    --hash=sha256:84e64a1c28cf7e91ed2078bb8cc8c259cb19b76942096c8d7b84947690cabaf0
+zipp==3.19.1 \
+    --hash=sha256:2828e64edb5386ea6a52e7ba7cdb17bb30a73a858f5eb6eb93d8d36f5ea26091 \
+    --hash=sha256:35427f6d5594f4acf82d25541438348c26736fa9b3afa2754bcd63cdb99d8e8f
     # via importlib-metadata