chore(deps): update helm release openbao to v0.25.6

Author: renovate[bot]

playgrounds/external-secrets/assets/distro/openbao.flux.yaml

@@ -22,7 +22,7 @@ spec:
   chart:
     spec:
       chart: openbao
-      version: "0.16.3"
+      version: "0.25.6"
       sourceRef:
         kind: HelmRepository
         name: openbao

playgrounds/openbao/assets/distro/openbao.flux.yaml

@@ -22,7 +22,7 @@ spec:
   chart:
     spec:
       chart: openbao
-      version: "0.16.3"
+      version: "0.25.6"
       sourceRef:
         kind: HelmRepository
         name: openbao

solutions/multi-tenant-sops/assets/distro/openbao.flux.yaml

@@ -22,7 +22,7 @@ spec:
   chart:
     spec:
       chart: openbao
-      version: "0.16.3"
+      version: "0.25.6"
       sourceRef:
         kind: HelmRepository
         name: openbao