Since eslint-plugin-jest 29.0.0 was released a short while ago, it would be great if @quasar/quasar-app-extension-testing-unit-jest would allow using it.
I have run a few test with eslint-plugin-jest 29.0.0, and it seems to be generally working, but maybe there is more than just adding the 29.0.0 version to the allowed peer dependencies:
- "eslint-plugin-jest": "^27.1.3 || ^28.0.0",
+ "eslint-plugin-jest": "^27.1.3 || ^28.0.0 || ^29.0.0",