Reduce post-deployment dependencies

* [ ] Make sure, `dbux-code` can depend on `@dbux/cli` in `devDependencies` without causing trouble in production.
* Bring back `const flags = ' --only=prod'`
* Maybe move to `peerDependencies`?
* Maybe `npm install --force` can fix it?
* [ ] During deployment, if `install` changes `yarn.lock`, the entire script fails, but versions have already changed.
* make sure to `yarn install` and push before starting anything else?
* if script fails, try to revert versions automatically (also see next point)
* [ ] Add an easier way to fix versions if `publish.js` fails
* use the alchemy table to mix together the correct version of the `npx lerna version...` command
* → NOTE: we cannot easily revert, because "the next version" was already created. Might have to "bump to next dev" instead.