Aliases do not appear to be reported in notifications

### Current Behavior

Issue #1992 was created to add aliases to notifications and while the original commit added aliases to the email template, this was later backed out.

In new NEW_VULNERABILITY notifications, the alias seems to be blank even though the vulnerability clearly indicates that there is an alias. I copied the code from the email template and put it into a JIRA template and no alias entry is ever generated.

_{%if subject.vulnerability.aliases is not null %}
*Aliases*
{% for alias in subject.vulnerability.aliases %}
- {{ alias.vulnId }}
{% endfor %}{% endif %}_

### Steps to Reproduce

1. Add the above logic to a template
2. Add a component which has a vulnerability with and alias to a project
3. Check the generated notification

### Expected Behavior

The alias should be shown for the vulnerability

### Dependency-Track Version

4.10.x

### Dependency-Track Distribution

Container Image

### Database Server

N/A

### Database Server Version

_No response_

### Browser

Google Chrome

### 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