Add non-clustered redis as sub-chart (#672)

Co-authored-by: Julien <julienym@gmail.com>
Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/672
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.com>
Co-authored-by: pat-s <patrick.schratz@gmail.com>
Co-committed-by: pat-s <patrick.schratz@gmail.com>

Chart.yaml

@@ -47,3 +47,8 @@ dependencies:
     repository: oci://registry-1.docker.io/bitnamicharts
     version: 10.2.6
     condition: redis-cluster.enabled
+  # https://github.com/bitnami/charts/blob/main/bitnami/redis/Chart.yaml
+  - name: redis
+    repository: oci://registry-1.docker.io/bitnamicharts
+    version: 19.6.1
+    condition: redis.enabled