Dependency-Track NVD API mirroring for Dependency-Check

### Current Behavior

Previously I used the NVD mirroring feature to speed up dependency-check using parameters `-DcveUrlModified=https://my.dependency-track.host/mirror/nvd/nvdcve-1.1-modified.json.gz -DcveUrlBase=https://my.dependency-track.host/mirror/nvd/nvdcve-1.1-%d.json.gz`.
Using dependency-check parameter `nvdDatafeedUrl` results in error `[ERROR] Unable to download the NVD API cache.properties`.

On what endpoint is the NVD API mirroring made available? How can a third party tool use the NVD API mirroring functionality?

### Steps to Reproduce

1. In DT settings set `Enable National Vulnerability Database mirroring`, `Enable mirroring via API`, `Additionally download feeds` and provide an `API key`.
2. Check logs to if `NistMirrorTask` and `NistApiMirrorTask` have run successfully:

```
[NistMirrorTask] NIST mirroring complete
[NistMirrorTask] Time spent (d/l): 3767ms
[NistMirrorTask] Time spent (total): 4411ms
[NistApiMirrorTask] Mirroring of 39 CVEs completed in PT6.87017985S
```

3. Run `mvn org.owasp:dependency-check-maven:9.0.4:aggregate -DnvdDatafeedUrl=https://my.dependency-track.host/mirror/nvd -Dformats=ALL`
4. Results in `[ERROR] Unable to download the NVD API cache.properties
org.owasp.dependencycheck.data.update.exception.UpdateException: Unable to download the NVD API cache.properties
`

### Expected Behavior

I expected to be able to use the mirror functionality in DT in dependency-check just like the formerly downloaded feeds. How should I integrate both OWASP software projects?

What endpoint should be used for NVD mirroring via API for consumption in third party tools (dependency-check)?
I could not find any documentation apart from a tooltip in the settings `Feeds will not be parsed, but made available to other clients at /mirror/nvd`.

### Dependency-Track Version

4.10.0

### 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

Start with the NistMirrorTask and NistApiMirrorTask entry points and the `/mirror/nvd` setting described in the issue. Compare the mirrored API output with the Dependency-Check 9.0.4 command and its expected cache.properties location. Done means the correct third-party consumption endpoint and integration behavior are documented or the reported download failure is resolved.

Written by the indexing model from the issue text.