fix(container): update image docker.io/library/ghost to v6.21.2

[renovate]

This PR contains the following updates:

Package	Update	Change
docker.io/library/ghost	patch	6.21.0 → 6.21.2

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[github-actions]

--- kubernetes/apps Kustomization: flux-system/cluster-apps HelmRelease: ghost/ghost

+++ kubernetes/apps Kustomization: flux-system/cluster-apps HelmRelease: ghost/ghost

@@ -47,13 +47,13 @@

       mail__options__auth__user: no-reply@glimmerlabs.io
       mail__options__service: Mailgun
       mail__transport: SMTP
       url: https://www.glimmerlabs.io
     image:
       repository: docker.io/library/ghost
-      tag: 6.21.0
+      tag: 6.21.2
     ingress:
       icon: mdi:television-classic
       localonly: false
       subdomain: ghost
     persistence:
       config:
--- kubernetes/apps/arcolog/ghost/app Kustomization: flux-system/cluster-apps-arcolog HelmRelease: arcolog/ghost

+++ kubernetes/apps/arcolog/ghost/app Kustomization: flux-system/cluster-apps-arcolog HelmRelease: arcolog/ghost

@@ -57,13 +57,13 @@

       mail__options__auth__user: no-reply@glimmerlabs.io
       mail__options__service: Mailgun
       mail__transport: SMTP
       url: https://www.arcolog.com
     image:
       repository: docker.io/library/ghost
-      tag: 6.21.0
+      tag: 6.21.2
     ingress:
       icon: mdi:television-classic
       localonly: false
       subdomain: arcolog
     persistence:
       config:

[github-actions]

--- HelmRelease: arcolog/ghost Deployment: arcolog/ghost

+++ HelmRelease: arcolog/ghost Deployment: arcolog/ghost

@@ -58,13 +58,13 @@

           value: SMTP
         - name: url
           value: https://www.arcolog.com
         envFrom:
         - secretRef:
             name: ghost-secret
-        image: docker.io/library/ghost:6.21.0
+        image: docker.io/library/ghost:6.21.2
         livenessProbe:
           failureThreshold: 3
           initialDelaySeconds: 0
           periodSeconds: 10
           tcpSocket:
             port: 2368
--- HelmRelease: ghost/ghost Deployment: ghost/ghost

+++ HelmRelease: ghost/ghost Deployment: ghost/ghost

@@ -58,13 +58,13 @@

           value: SMTP
         - name: url
           value: https://www.glimmerlabs.io
         envFrom:
         - secretRef:
             name: ghost-secret
-        image: docker.io/library/ghost:6.21.0
+        image: docker.io/library/ghost:6.21.2
         livenessProbe:
           failureThreshold: 3
           initialDelaySeconds: 0
           periodSeconds: 10
           tcpSocket:
             port: 2368