Update ghcr.io/k8up-io/k8up Docker tag to v2.15.0

Signed-off-by: Renovate Bot <tech+renovate@vshn.ch>

Author: vshn-renovate

class/defaults.yml

@@ -12,7 +12,7 @@ parameters:
       k8up:
         registry: ghcr.io
         repository: k8up-io/k8up
-        tag: v2.13.1
+        tag: v2.15.0
         pullPolicy: IfNotPresent
 
     helmReleaseName: k8up

tests/golden/defaults/backup-k8up/backup-k8up/01_k8up_helmchart/k8up/templates/cleanup-hook.yaml

@@ -101,7 +101,7 @@ spec:
           command:
             - sh
             - -c
-          image: ghcr.io/k8up-io/k8up:v2.13.1
+          image: ghcr.io/k8up-io/k8up:v2.15.0
           imagePullPolicy: IfNotPresent
           name: k8up-cleanup
       restartPolicy: Never

tests/golden/defaults/backup-k8up/backup-k8up/01_k8up_helmchart/k8up/templates/deployment.yaml

@@ -25,7 +25,7 @@ spec:
             - operator
           env:
             - name: BACKUP_IMAGE
-              value: ghcr.io/k8up-io/k8up:v2.13.1
+              value: ghcr.io/k8up-io/k8up:v2.15.0
             - name: TZ
               value: Etc/UTC
             - name: BACKUP_ENABLE_LEADER_ELECTION
@@ -44,7 +44,7 @@ spec:
               value: k8up.io/backupcommand
             - name: BACKUP_BACKOFFLIMIT
               value: '2'
-          image: ghcr.io/k8up-io/k8up:v2.13.1
+          image: ghcr.io/k8up-io/k8up:v2.15.0
           imagePullPolicy: IfNotPresent
           livenessProbe:
             httpGet: