fix: retain currentScript reference when processing async/defer script

[hemisu]

Description

retain currentScript reference when processing async/defer scripts to prevent data-* attribute read failures

dev/app-react-18/public/index.html

<script
      src="./scripts/readCurrentScript.js"
      data-appkey="supply"
      async="true"
    ></script>

the currentScript property will not be read

Related Issue

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation.

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Name	Status	Preview	Comments	Updated (UTC)
garfish	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 23, 2025 7:38am

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