[AUTO-CHERRYPICK TEST] Patch libxml2 for CVE-2025-49794, CVE-2025-49796[CRITICAL], CVE-2025-6021[MED], CVE-2025-6170[LOW] - branch aaruagrawal/autoPRTestingBase

[aaruag]

This is an auto-generated pull request to cherry-pick commit dca9040 to aaruagrawal/autoPRTestingBase. Original PR: #14351
In case of no merge conflicts, the PR is merged without approval because it's an automated cherry-pick of an already approved PR.

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