Helm charts are outdated and not automatically published.

Currently the publishing of the GHCR OCI artifact is done only via workflow_dispatch (manual)

https://github.com/Azure/aks-mcp/blob/main/.github/workflows/publish-helm-chart.yml

After [this PR ](https://github.com/Azure/aks-mcp/pull/382)the :latest GHCR docker image no longer works with the helm chart in --streamable-http mode as we cannot set allowedHosts

```
security:
allowedHosts:
---
```

This makes this error appear:

```
Validation failed: │
│ transport "streamable-http" bound to non-loopback host "0.0.0.0" without OAuth and without --allowed-host: refusing to start to avoid DNS-rebinding exposure; choose │
│ one of: (a) bind --host 127.0.0.1, (b) --oauth-enabled, (c) --allowed-host=
```

Start with .github/workflows/publish-helm-chart.yml and compare its manual publishing behavior with the chart and image changes from PR #382. Check how the Helm chart supplies allowedHosts in streamable-http mode, then verify that the chart is automatically published and no longer produces the reported validation error.

Written by the indexing model from the issue text.