refactor: Optimize thin usage of istio

[wjp-cn]

Ⅰ. Describe what this PR does

Annotation "sidecar.istio.io/inject" has been deprecated in favor of the "sidecar.istio.io/inject" label and may not work in future Istio versions.

The annotation method was deprecated a long time ago, and the current approach might lead to unexpected issues during future Istio upgrades.

Ⅱ. Does this pull request fix one issue?

fixes #4418

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

Ⅳ. Describe how to verify it

Verify through “make test”

Ⅴ. Special notes for reviews

[fluid-e2e-bot]

Hi @wjp-cn. Thanks for your PR.

I'm waiting for a fluid-cloudnative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[cheyang]

/lgtm
/approve

[fluid-e2e-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cheyang

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