Eslint V9 Flat Config Type Checked Configs in V20

### Which @ngrx/* package(s) are relevant/related to the feature request?

eslint-plugin

### Information

Would be great to have the type checked configs also available for v20, as with v21, because we are still using angular v20

### Describe any alternatives/workarounds you're currently using

_No response_

### I would be willing to submit a PR to fix this issue

- [ ] Yes
- [x] No