configure higher cron schedules

CronJobs were using bare image name 'myorg-assistant:latest' with
imagePullPolicy: IfNotPresent and no imagePullSecrets. K8s tried to
pull from Docker Hub → ImagePullBackOff on all 4 running CronJob pods.

Changed to git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
(matching the Deployment), imagePullPolicy: Always, and added
imagePullSecrets: gitea-registry to all 5 CronJob manifests.

argocd-bootstrap.yaml

@@ -22,9 +22,3 @@ spec:
       selfHeal: true
     syncOptions:
       - CreateNamespace=false
-  ignoreDifferences:
-    - group: argoproj.io
-      kind: Application
-      jsonPointers:
-        - /status
-        - /operation