After update, Zammad can't start: `require': cannot load such file -- action_dispatch (LoadError)

I solved this issue:

1. I downloaded the current 6.2. version with wget:
   wget https://dl.packager.io/srv/deb/zammad/zammad/stable/debian/pool/main/zammad_6.2.0-1702052196.543b74f4.bookworm_amd64.deb
2. I did a manual upgrade installation:
   dpkg -i zammad_6.2.0-1702052196.543b74f4.bookworm_amd64.deb
   now, web interface works as expected.