Add ArtifactHub repository metadata and improve Helm chart configuration

- Introduced artifacthub-repo.yml for ownership verification on ArtifactHub.
- Updated release-chart.yaml to publish the ArtifactHub metadata as an OCI artifact.
- Bumped chart version to 0.2.2 and added relevant changes to Chart.yaml.
- Enhanced job-reconcile.yaml by adding a writable /tmp directory for the reconcile job.

charts/aptly/templates/job-reconcile.yaml

@@ -75,10 +75,14 @@ spec:
               mountPath: /state.yaml
               subPath: state.yaml
               readOnly: true
+            - name: tmp
+              mountPath: /tmp
           resources:
             {{- toYaml .Values.reconcile.resources | nindent 12 }}
       volumes:
         - name: state
           configMap:
             name: {{ $fullname }}-state
+        - name: tmp
+          emptyDir: {}
 {{- end }}