Create Plugin: Update Jest to v29

[jackw]

What this PR does / why we need it:
The version of jest offered with create-plugin is two major versions behind current. This PR updates it to latest (v29) inline with Grafana core.

Which issue(s) this PR fixes:

Fixes #161

Special notes for your reviewer:
I've not tested this yet. Hoping CI can pick up anything obvious first.

📦 Published PR as canary version: Canary Versions

✨ Test out this PR locally via:

npm install @grafana/create-plugin@0.8.0-canary.164.d94943e.0
# or 
yarn add @grafana/create-plugin@0.8.0-canary.164.d94943e.0

[leventebalogh]

LGTM 👍

(Haven't tested it locally, just based on the code.)

[leventebalogh]

Actually, just tested it out and it didn't work for me unfortunately (latest published version works):

[leventebalogh]

Another thing that is not directly related to this PR but maybe something we should include in our "What's next?" paragraph.
Once I generated the plugin, did yarn install and try to run yarn test it fails due to not having Git initialised.

--watch is not supported without git/hg

We could either just use --watchAll instead of --watch --onlyChanged, or we can add a point in the "What's next?" section to raise their attention to initialise Git before doing anything else. WDYT?

[jackw]

Thanks for taking the time to test this out @leventebalogh really appreciate it. I've pushed a couple of commits that should fix the errors with tests and improve our success messaging...

[grafanabot]

🚀 PR was released in @grafana/create-plugin@0.8.0 🚀