updating custom-policies.json on function doesn't update function

### 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/dev/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?

v16.16.0

### Amplify CLI Version

9.2.1

### What operating system are you using?

Arch Linux

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

No manual changes made

### Amplify Categories

function

### Amplify Commands

push

### Describe the bug

I updated the custom-policies.json and amplify push didn't register the change.

### Expected behavior

I expected the custom policy to be applied to the cloudformation.

### Reproduction steps

1. Create a function
2. Push function
3. Update custom-policies.json
4. Push

### GraphQL schema(s)

```graphql
# Put schemas below this line

```

### Project Identifier

_No response_

### Log output

```
# Put your logs below this line

```

### Additional information

_No response_