check-for-update doesn't bump `resolutions` in package.json

[Jolg42]

We implemented something that looks like we handle resolutions and update prisma dependencies versions here https://github.com/prisma/ecosystem-tests/blob/88e5bca3b7cd63dd7cd5e623ac3a3953274328e2/.github/scripts/check-for-update.sh#L105-L131

Though resolutions for the [vercel-with-redwood](https://github.com/prisma/ecosystem-tests/tree/dev/platforms-serverless-vercel/vercel-with-redwood) directory were not updated since a long time and I did it manually in: https://github.com/prisma/ecosystem-tests/pull/3004

We should check if there is a bug in check-for-update.sh logic.