Passing custom props to IdealImage

### Have you read the Contributing Guidelines on issues?

- [X] I have read the [Contributing Guidelines on issues](https://github.com/facebook/docusaurus/blob/main/CONTRIBUTING.md#issues).

### Prerequisites

- [X] I'm using the latest version of Docusaurus.
- [X] I have tried the `npm run clear` or `yarn clear` command.
- [X] I have tried `rm -rf node_modules yarn.lock package-lock.json` and re-installing packages.
- [X] I have tried creating a repro with https://new.docusaurus.io.
- [X] I have read the console error message carefully (if applicable).

### Description

I want to pass custom properties (namely fetchpriority=high to improve Largest Contentful Paint) to the Image of ideal-image, but this gets ignored.

The property is rendered in dev (with ideal-image config `disableInDev: true`), but not in the build.

### Reproducible demo

_No response_

### Steps to reproduce

1. Create ``
2. View output: fetchpriority isn't rendered

### Expected behavior

The custom attributes should be rendered

### Actual behavior

They aren't being rendered

### Your environment

_No response_

### Self-service

- [ ] I'd be willing to fix this bug myself.