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/serviceaccount.yaml

@@ -0,0 +1,13 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "aptly.serviceAccountName" . }}
+  labels:
+    {{- include "aptly.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automountServiceAccountToken }}
+{{- end -}}