Ⅰ. Describe what this PR does

Incorrect indentation in the Helm template can lead to template rendering failures. In the current dataload operations across all runtimes, many of the configurations within the CronJob's template spec, such as nodeSelector, affinity, tolerations, and imagePullSecrets, have incorrect indentation. This causes issues when users configure these settings in the dataload and specify the usage of policy: Cron, resulting in a failure in the CronJob template rendering.

Ⅱ. Does this pull request fix one issue?

fixes #4358

Ⅲ. List the added test cases (unit test/integration test) if any, please explain if no tests are needed.

Use the following example to ensure cronJob can work well

apiVersion: data.fluid.io/v1alpha1
kind: DataLoad
metadata:
  name: data-warmup-cron
spec:
  nodeSelector:
    cronjob: "true"
  imagePullSecrets:
  - name: acs-dev-acr
  dataset:
    name: demo-1
    namespace: default
  loadMetadata: true
  policy: Cron
  schedule: "*/1 * * * *"