POST /v1/project auto-creates a tag but other endpoints require tags to exist

### Current Behavior

I can update a project with tags that don't exist in the system and the tags will be created.

If I try to add tags to a project via `v1/tag/$tag_name/project` and the tag does not exist I get an error:
```
{"status":404,"title":"Resource does not exist","detail":"A tag with name newtag does not exist"}
```

I didn't check it but I expect similar behavior for other `v1/tag` endpoints

### Expected Behavior

Missing tags are automatically created by all endpoints.

### Dependency-Track Version

4.13.2

### Dependency-Track Distribution

Container Image

### Database Server

N/A

### 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