chore(deps): update redis docker tag to v21.2.14

Author: renovate[bot]

charts/nextcloud/Chart.lock

@@ -7,9 +7,9 @@ dependencies:
   version: 20.5.5
 - name: redis
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 21.1.3
+  version: 21.2.14
 - name: collabora-online
   repository: https://collaboraonline.github.io/online
   version: 1.1.20
-digest: sha256:47979e007ed8bb4a53ec00c5e457da110573a6e067f24da505144f475b26981c
-generated: "2025-05-18T15:22:37.968306345+02:00"
+digest: sha256:d1baf5554c8d1616a3108c0e6f4950bd8b1dade984be54cd4932adb0d7439365
+generated: "2025-09-25T20:53:46.291128932Z"

charts/nextcloud/Chart.yaml

@@ -36,7 +36,7 @@ dependencies:
     repository: oci://registry-1.docker.io/bitnamicharts
     condition: mariadb.enabled
   - name: redis
-    version: 21.1.3
+    version: 21.2.14
     repository: oci://registry-1.docker.io/bitnamicharts
     condition: redis.enabled
   - name: collabora-online