Fix missing ClusterRole, ClusterRoleBinding, and ServiceAccount for Custom Cert Mode in Helm Chart

[seanlaii]

What type of PR is this?
/kind bug

What this PR does / why we need it:
When installing Karmada using the Helm chart with certs.mode set to custom, the required ClusterRole, ClusterRoleBinding, and ServiceAccount are not created: https://github.com/karmada-io/karmada/blob/master/charts/karmada/templates/pre-install-job.yaml#L449-L498.
These resources are essential for the static-resource-job, post-delete-job, and post-install-job to function correctly.

To resolve this issue, the installation of these resources has been moved outside the certificate mode conditional check, ensuring they are created regardless of the selected certificate mode.

Which issue(s) this PR fixes:
Fixes #6185

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

None

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign a7i for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• charts/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.97%. Comparing base (824bd8d) to head (b9256e8).

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6188   +/-   ##
=======================================
  Coverage   47.97%   47.97%           
=======================================
  Files         674      674           
  Lines       55841    55841           
=======================================
+ Hits        26788    26789    +1     
+ Misses      27305    27304    -1     
  Partials     1748     1748           

Flag	Coverage Δ
unittests	47.97% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[seanlaii]

Hi @zhzhuang-zju and @RainbowMango , please help review this PR when you have time. Thank you so much!

[zhzhuang-zju]

/lgtm
thanks, @seanlaii, I'm wondering if tests can cover this scenario. I don't mean in this PR, but rather in the subsequent reinforcement.

[seanlaii]

Hi @zhzhuang-zju , agree! I could add a Chart test for custom cert mode in the subsequent reinforcement.

[RainbowMango]

cc @a7i to take another look and approval?