feat: add Australia/Sydney timezone to base cronjobs (google#5097)

Add `timeZone: "Australia/Sydney"` to all CronJob configurations under
`deployment/clouddeploy/gke-indexer/base/` and
`deployment/clouddeploy/gke-workers/base/` directories. This configures
the cron schedules to evaluate against Sydney time instead of UTC.

---
*PR created automatically by Jules for task
[12924298385411470107](https://jules.google.com/task/12924298385411470107)
started by @another-rex*

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: another-rex

deployment/clouddeploy/gke-indexer/base/indexer-controller.yaml

@@ -17,6 +17,7 @@ kind: CronJob
 metadata:
   name: indexer-controller
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "0 0 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/alpine-cve-convert.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "180"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "17 * * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/backup.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "2880"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "0 18 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/cpe-repo-gen.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "2880"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "15 5 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/custommetrics.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "5"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "* * * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/debian-convert.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "180"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "0 * * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/debian-copyright-mirror.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "2880"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "0 5 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/debian-cve-convert.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "120"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "47 * * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/debian-first-version.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "2880"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "0 1 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

deployment/clouddeploy/gke-workers/base/exporter.yaml

@@ -5,6 +5,7 @@ metadata:
   labels:
     cronLastSuccessfulTimeMins: "30"
 spec:
+  timeZone: "Australia/Sydney"
   schedule: "*/15 * * * *"
   concurrencyPolicy: Forbid
   # If the previous job overruns by more than a minute,