update with-redux-toolkit-typescript (vercel#26714)

## Bug

- [X] Related issues linked using `fixes vercel#26713 `

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.

## Documentation / Examples

- [X] Make sure the linting passes

## Screenshots

After this small change the warning disappears.
![image](https://user-images.githubusercontent.com/47717492/123749377-fd56fb80-d8d2-11eb-8b70-dbb7f6f16050.png)

examples/with-redux-toolkit-typescript/next-env.d.ts

@@ -1,2 +1,3 @@
 /// <reference types="next" />
 /// <reference types="next/types/global" />
+/// <reference types="next/image-types/global" />

examples/with-redux-toolkit-typescript/package.json

@@ -29,6 +29,6 @@
     "jest-css-modules-transform": "^4.2.0",
     "ts-jest": "^26.0.0",
     "ts-node": "^9.0.0",
-    "typescript": "4.2.3"
+    "typescript": "^4.3.4"
   }
 }