[jellyseerr] Update nodejs if not up-to-date

[makstech]

✍️ Description

With older installation of Jellyseer, running update in LXC breaks the Jellyseerr, because Node was v20, and pnpm fails with

 ERR_PNPM_UNSUPPORTED_ENGINE  Unsupported environment (bad pnpm and/or Node.js version)

Your Node version is incompatible with "/opt/jellyseerr".

Expected version: ^22.0.0
Got: v20.18.0

So with this change, update script checks for current node version, and if it's not v22.x, it just updates the node source list to the same one that is in the install script, and then upgrades packages.

✅ Prerequisites

The following steps must be completed for the pull request to be considered:

• Self-review performed (I have reviewed my code to ensure it follows established patterns and conventions.)
• Testing performed (I have thoroughly tested my changes and verified expected functionality.)

🛠️ Type of Change

Please check the relevant options:

• Bug fix (non-breaking change that resolves an issue)

[MickLesk]

We have already there for expect 40 Scripts. But i can merge. Its not an issue. Its an Feature :p

Looks nodejs_22 Branch