fix(container): update image docker.dragonflydb.io/dragonflydb/dragon…

…fly to v1.21.1 (#6946)

| datasource | package                                     | from    | to      |
| ---------- | ------------------------------------------- | ------- | ------- |
| docker     | docker.dragonflydb.io/dragonflydb/dragonfly | v1.21.0 | v1.21.1 |

Co-authored-by: rosey-the-renovator-bot[bot] <98764075+rosey-the-renovator-bot[bot]@users.noreply.github.com>

kubernetes/main/apps/databases/dragonfly/cluster/cluster.yaml

@@ -7,7 +7,7 @@ metadata:
 spec:
   labels:
     dragonflydb.io/cluster: dragonfly
-  image: docker.dragonflydb.io/dragonflydb/dragonfly:v1.21.0
+  image: docker.dragonflydb.io/dragonflydb/dragonfly:v1.21.1
   replicas: 3
   resources:
     requests: