Enhance Helm chart with ServiceAccount support and configurable ports

- Updated Chart.yaml to version 0.2.0 and added annotations for changes.
- Modified release-chart.yaml to trigger releases via Gitea and handle pre-releases.
- Introduced ServiceAccount configuration in values.yaml and related templates.
- Adjusted internal container ports to prevent conflicts between nginx and aptly.
- Updated README.md and NOTES.txt to reflect new configurations and usage instructions.

charts/aptly/templates/networkpolicy.yaml

@@ -15,7 +15,7 @@ spec:
   ingress:
     {{- if .Values.networkPolicy.allowedNamespaces }}
     # Restricted to these namespaces (plus this one). NOTE: this applies to
-    # the whole nginx:8080 endpoint — read and write share one port, so this
+    # the whole nginx endpoint — read and write share one port, so this
     # cannot itself express "reads are public, writes are cluster-only" any
     # more precisely than security.write.allowCIDRs can (see the warning
     # rendered into nginx.conf for that). Use it to fence the Service off