chore: fix ingress, improve dependencies check and add file header

[evegufy]

Description

• helm chart: change ingress to work without tls enabled
• dependencies-check: remove dash tool jar from repo: move to downloading the tool at every run
• add file headers #142

Why

• change ingress because I noticed that it isn't possible to enable it without TLS enabled as well: this is quite an annoyance if one wants to use the chart in a local testing setup due to this validation being place which is taking effect if the default values aren't commented out.
• change dependencies check due to: https://github.com/eclipse-tractusx/policy-hub/issues/127#issuecomment-2119967830

Checklist

• [x] I have followed the contributing guidelines
• [x] I have performed a self-review of my own changes

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[evegufy]

Overall LGTM, please add prerequisites to your chart again.

For helm check I just templated the chart with ingress.enabled = true and no error occurs (beside that the helm test workflow gonna test it).

Sidenote I missed previously, which I would not request as a point, but recommend: The system team provides an action for the changed dependency. You can refer to our workflow and increase the version of the dash tool here.

Good hint with the action from the systems team, I wasn't aware about that action, for now I'll leave the workflow as is because I have it running successfully in this manner a couple of other repos and I don't have time to rework it too much and don't want to spare such features like uploading the file if changed.