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.

myorg-assistant/cronjobs/deadline-checker.yaml

@@ -22,9 +22,11 @@ spec:
             job: deadline-checker
         spec:
           restartPolicy: OnFailure
+          imagePullSecrets:
+          - name: gitea-registry
           containers:
           - name: deadline-checker
-            image: myorg-assistant:latest
+            image: git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
             imagePullPolicy: IfNotPresent
             command:
             - python

myorg-assistant/cronjobs/evening-summary.yaml

@@ -22,9 +22,11 @@ spec:
             job: evening-summary
         spec:
           restartPolicy: OnFailure
+          imagePullSecrets:
+          - name: gitea-registry
           containers:
           - name: evening-summary
-            image: myorg-assistant:latest
+            image: git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
             imagePullPolicy: IfNotPresent
             command:
             - python

myorg-assistant/cronjobs/git-sync.yaml

@@ -22,9 +22,11 @@ spec:
             job: git-sync
         spec:
           restartPolicy: OnFailure
+          imagePullSecrets:
+          - name: gitea-registry
           containers:
           - name: git-sync
-            image: myorg-assistant:latest
+            image: git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
             imagePullPolicy: IfNotPresent
             command:
             - python

myorg-assistant/cronjobs/morning-briefing.yaml

@@ -22,9 +22,11 @@ spec:
             job: morning-briefing
         spec:
           restartPolicy: OnFailure
+          imagePullSecrets:
+          - name: gitea-registry
           containers:
           - name: morning-briefing
-            image: myorg-assistant:latest
+            image: git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
             imagePullPolicy: IfNotPresent
             command:
             - python

myorg-assistant/cronjobs/waiting-followup.yaml

@@ -22,9 +22,11 @@ spec:
             job: waiting-followup
         spec:
           restartPolicy: OnFailure
+          imagePullSecrets:
+          - name: gitea-registry
           containers:
           - name: waiting-followup
-            image: myorg-assistant:latest
+            image: git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
             imagePullPolicy: IfNotPresent
             command:
             - python