Update Helm release redis to v27

Author: renovate[bot]

pretix-helm/Chart.lock

@@ -4,6 +4,6 @@ dependencies:
   version: 16.7.27
 - name: redis
   repository: https://charts.bitnami.com/bitnami
-  version: 19.6.4
-digest: sha256:2d3aaa21f018ea007f098d99541123a8ddf0419c3ea5eb82cdaa735bc2b87b62
-generated: "2025-09-20T14:16:30.047125434Z"
+  version: 27.0.15
+digest: sha256:01e8e4fd46784cd14f3ce503672da6cb4d136effb6100ca6566993f5fe7df6dd
+generated: "2026-07-10T21:43:15.440315715Z"

pretix-helm/Chart.yaml

@@ -12,7 +12,7 @@ dependencies:
     repository: "https://charts.bitnami.com/bitnami"
     condition: postgresql.enabled
   - name: redis
-    version: "19.6.4"
+    version: "27.0.15"
     repository: "https://charts.bitnami.com/bitnami"
     condition: redis.enabled
 sources: