Update Traccar to 6.14 and add webOverride volume configuration

[nareddyt]

Updates helm chart to deploy latest traccar tag (https://www.traccar.org/blog/traccar-6-14/)

It mostly works out of the box, but there is one minor issue with file permissions due to the new web.override feature.

Problem

2026-06-10 04:24:10 ERROR: Main method error - /opt/traccar/./override - AccessDeniedException

From https://www.traccar.org/configuration-file/

web.override config
Path to a folder with overrides. It can be used for branding to keep custom logos in a separate place.
Default value: "./override"

Solution

To fix this, we add support for custom UI override volumes by exposing a webOverride key in values.yaml and mapping it to /opt/traccar/override. By default, we make it an emptyDir. Users can specify a configmap if needed, e.g.:

    webOverride:
      configMap:
        name: my-traccar-branding-assets

Testing Done

Deployed to my own k8s cluster. Verified pod comes up healthy and tracking works.

Fixes #43

[nareddyt]

@tananaev PTAL

[tananaev]

I think you would have to fix the lint first.

[nareddyt]

Fixed #42 in this PR as well. PTAL @tananaev

[nareddyt]

That issue was causing the CI failure ^

[tananaev]

We need to split the two different changes.

[nareddyt]

We need to split the two different changes.

Split it out into #47

[nareddyt]

Rebased on #47 and ready for review

[nareddyt]

Sorry, forgot to include the absolute path /opt/traccar/jre/bin/java in the command. Fixed. PTAL @tananaev