Policy violations only updated after BOM upload, not after VEX upload

### Current Behavior

See: https://github.com/DependencyTrack/dependency-track/discussions/4992

It seems the policy violations are only updated if I upload a new SBOM after suppressing the findings

### Steps to Reproduce

1.Define a policy for severity
2. Upload a BOM with a component matched by policy
3. Suppress the security finding
4. Notice that the project still has a policy violation reported
5. Upload a BOM again (the same as in 2.)
6. Notice that the project has the policy violation reported

### Expected Behavior

Policy violations should be updated immediatelly after VEX upload/suppression

### 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