chore(deps): update container image ghcr.io/onedr0p/postgres-init to v16.4

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/onedr0p/postgres-init (source)	major	15.5 -> 16.4

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[mrwulf-action-bot]

--- cluster/apps Kustomization: flux-system/apps HelmRelease: household/outline

+++ cluster/apps Kustomization: flux-system/apps HelmRelease: household/outline

@@ -108,13 +108,13 @@

                   name: outline-secret
             envFrom:
             - secretRef:
                 name: outline-secret
             image:
               repository: ghcr.io/onedr0p/postgres-init
-              tag: 15.5
+              tag: 16.4
         pod:
           dnsConfig:
             options:
             - name: ndots
               value: '1'
           topologySpreadConstraints:

[mrwulf-action-bot]

--- HelmRelease: household/outline Deployment: household/outline

+++ HelmRelease: household/outline Deployment: household/outline

@@ -71,13 +71,13 @@

             secretKeyRef:
               key: POSTGRES_USER
               name: outline-secret
         envFrom:
         - secretRef:
             name: outline-secret
-        image: ghcr.io/onedr0p/postgres-init:15.5
+        image: ghcr.io/onedr0p/postgres-init:16.4
         name: init-db
       containers:
       - command:
         - /bin/sh
         - -c
         - yarn db:migrate --env=production-ssl-disabled && yarn start --env=production-ssl-disabled