Bump websocket-client from 1.6.3 to 1.6.4 in /tests (#4488)

Bumps [websocket-client](https://github.com/websocket-client/websocket-client) from 1.6.3 to 1.6.4.
- [Release notes](https://github.com/websocket-client/websocket-client/releases)
- [Changelog](https://github.com/websocket-client/websocket-client/blob/master/ChangeLog)
- [Commits](websocket-client/websocket-client@v1.6.3...v1.6.4)

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

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

tests/requirements.txt

@@ -534,9 +534,9 @@ urllib3==2.0.6 \
     #   -r requirements.txt
     #   kubernetes
     #   requests
-websocket-client==1.6.3 \
-    --hash=sha256:3aad25d31284266bcfcfd1fd8a743f63282305a364b8d0948a43bd606acc652f \
-    --hash=sha256:6cfc30d051ebabb73a5fa246efdcc14c8fbebbd0330f8984ac3bb6d9edd2ad03
+websocket-client==1.6.4 \
+    --hash=sha256:084072e0a7f5f347ef2ac3d8698a5e0b4ffbfcab607628cadabc650fc9a83a24 \
+    --hash=sha256:b3324019b3c28572086c4a319f91d1dcd44e6e11cd340232978c684a7650d0df
     # via
     #   -r requirements.txt
     #   kubernetes