feat(apps): remove Penpot deployment and associated configurations

flux/apps/secrets/kustomization.yaml

@@ -2,4 +2,3 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - namespaces.yaml
-  - penpot.yaml

flux/apps/secrets/penpot.yaml

@@ -1,10 +0,0 @@
-# Penpot runtime secrets
-apiVersion: v1
-kind: Secret
-metadata:
-  name: penpot
-  namespace: apps
-type: Opaque
-stringData:
-  api-secret-key: |-
-    ${PENPOT_API_SECRET_KEY}