fix: extension resources weren't deleted as expected on initialization

[guqing]

What type of PR is this?

/kind improvement
/area core
/milestone 2.16.x

What this PR does / why we need it:

修复初始化时未按预期删除自定义资源

Does this PR introduce a user-facing change?

修复初始化时未按预期删除自定义资源

[guqing]

/cherry-pick release-2.15

[halo-dev-bot]

@guqing: once the present PR merges, I will cherry-pick it on top of release-2.15 in a new PR and assign it to you.

In response to this:

/cherry-pick release-2.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.2% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.54%. Comparing base (5fdf6c0) to head (d12fd82).
Report is 158 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #5859      +/-   ##
============================================
- Coverage     56.91%   56.54%   -0.37%     
- Complexity     3319     3444     +125     
============================================
  Files           587      612      +25     
  Lines         18968    20336    +1368     
  Branches       1401     1396       -5     
============================================
+ Hits          10795    11500     +705     
- Misses         7594     8262     +668     
+ Partials        579      574       -5     

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

[ruibaby]

/lgtm

[ruibaby]

/cherrypick release-2.15

[halo-dev-bot]

@ruibaby: once the present PR merges, I will cherry-pick it on top of release-2.15 in a new PR and assign it to you.

In response to this:

/cherrypick release-2.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[JohnNiang]

/approve

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang

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

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Needs approval from an approver in each of these files:

• OWNERS [JohnNiang]

Approvers can indicate their approval by writing /approve in a comment
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[halo-dev-bot]

@guqing: new pull request created: #5860

In response to this:

/cherry-pick release-2.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.