Amplify Push Overwrites user-pool-group-precedence.json

### Before opening, please confirm:

- [X] I have installed the latest version of the Amplify CLI (see above), and confirmed that the issue still persists.
- [X] I have [searched for duplicate or closed issues](https://github.com/aws-amplify/amplify-cli/issues?q=is%3Aissue+).
- [X] I have read the guide for [submitting bug reports](https://github.com/aws-amplify/amplify-cli/blob/master/CONTRIBUTING.md#bug-reports).
- [X] I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.
- [X] I have removed any sensitive information from my code snippets and submission.

### How did you install the Amplify CLI?

npm

### If applicable, what version of Node.js are you using?

16.3.0

### Amplify CLI Version

7.6.13

### What operating system are you using?

OSX

### Did you make any manual changes to the cloud resources managed by Amplify? Please describe the changes made.

No

### Amplify Categories

auth

### Amplify Commands

push

### Describe the bug

After adding user groups via the CLI, when adding custom policies as per [the docs](https://docs.amplify.aws/cli/auth/groups/#group-access-controls), if one runs amplify push the custom policies are removed.

### Expected behavior

Custom policies are applied to the IAM role for the user group

### Reproduction steps

Follow the docs https://docs.amplify.aws/cli/auth/groups/#group-access-controls

### GraphQL schema(s)

```graphql
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```

### Log output

```
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```

### Additional information

_No response_