PUT api/v1/acl/mapping is not idempotent

### Current Behavior

Sending the same PUT request twice results in `A mapping with the same team and project already exists.`

### Expected Behavior

> The PUT method is idempotent, meaning that multiple PUT requests with the same data will have the same effect as a single request

### Dependency-Track Version

4.13.1

### Dependency-Track Distribution

Container Image

### Database Server

PostgreSQL

### Database Server Version

_No response_

### Browser

N/A

### Checklist

- [x] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [x] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this defect was already reported