fix(myorg-assistant): fix CronJob image references to use Gitea registry image

CronJobs were referencing 'myorg-assistant:latest' (a local image that
doesn't exist in the cluster), causing ImagePullBackOff on all 4 active
CronJob pods. Updated all 5 CronJob manifests to use the same image as
the Deployment (git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf)
and added imagePullSecrets: gitea-registry for authentication.

argocd/argocd-rbac-cm.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: argocd-rbac-cm
+  namespace: argocd
+  labels:
+    app.kubernetes.io/name: argocd-rbac-cm
+    app.kubernetes.io/part-of: argocd
+data:
+  policy.default: ""
+  policy.csv: |
+    p, role:platform-engineer, applications, get, */*, allow
+    p, role:platform-engineer, applications, sync, */*, allow
+    p, role:platform-engineer, projects, get, *, allow
+    g, platform-engineer, role:platform-engineer