fix(container): update ghcr.io/cloudnative-pg/postgresql to v17.0-15

[lumiere-bot]

This PR contains the following updates:

Package	Update	Change
ghcr.io/cloudnative-pg/postgresql	patch	17.0-3 -> 17.0-15
ghcr.io/cloudnative-pg/postgresql	major	16.4-36 -> 17.0-15

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[lumiere-bot]

--- kubernetes/kyak/apps/database/cloudnative-pg/cluster Kustomization: flux-system/cloudnative-pg-cluster Cluster: database/postgres16

+++ kubernetes/kyak/apps/database/cloudnative-pg/cluster Kustomization: flux-system/cloudnative-pg-cluster Cluster: database/postgres16

@@ -43,13 +43,13 @@

           key: aws-secret-access-key
           name: cloudnative-pg-secret
       wal:
         compression: bzip2
         maxParallel: 8
     name: postgres16-v3
-  imageName: ghcr.io/cloudnative-pg/postgresql:16.4-36
+  imageName: ghcr.io/cloudnative-pg/postgresql:17.0-15
   instances: 3
   monitoring:
     enablePodMonitor: true
   postgresql:
     parameters:
       max_connections: '600'