Dependency Track integration is not working when using the latest Postee Helm Chart

## Description
With V2.14.0 Dependency Track has been implemented into Postee by @takumakume (Thanks for that :)) at #594. However, when I implemented that using the helm chart, I noticed that this is not working and Postee complains about Action type dependencytrack not being available.
After checking the latest Helm chart, I noticed, that it is still using the old images from V2.12, as also mentioned in #605. This has already been fixed in the Master branch, but there was no release yet for that.

## What did you expect to happen?
Switching the Helm chart images to include the latest image and create a new release, that will fix the behaviour

## What happened instead?

## Output of run with `POSTEE_DEBUG=true`:

```
(paste your output here)
```

## Additional details (environment setup, networking info...):

Thanks in advance :)

Inspect the latest Helm chart's image references and compare them with the Master branch and issue #605. Confirm the selected images include the Dependency Track action, then verify the chart deployment recognizes dependencytrack; done when an updated release uses the correct images.

Written by the indexing model from the issue text.