@apollo/client@4.0.4 — Apollo Client

#12892 db8a04b Thanks @jerelmiller! - Prevent unhandled rejections from the promise returned by calling the mutate function from the useMutation hook.
#12899 5352c12 Thanks @phryneas! - Fix an issue when invariant is called by external libraries when no dev error message handler is loaded.
#12895 71f2517 Thanks @jerelmiller! - Support skipToken with useQuery to provide a more type-safe way to skip query execution.
```
import { skipToken, useQuery } from "@apollo/client/react";

// Use `skipToken` in place of `skip: true` for better type safety
// for required variables
const { data } = useQuery(QUERY, id ? { variables: { id } } : skipToken);
```
Note: this change is provided as a patch within the 4.0 minor version because the changes to TypeScript validation with required variables in version 4.0 made using the skip option more difficult.
#12900 c0d5be7 Thanks @phryneas! - Use named export equal instead of default from "@wry/equality"