Fix npm flag syntax in autofix workflow

[Copilot]

The autofix workflow used incorrect npm flag syntax (-fg) for corepack installation, causing potential workflow failures.

Changes

• Corrected npm i -fg corepack to npm i -g --force corepack in .github/workflows/autofix.yml
• Aligns with ci.yml syntax for consistency across workflows

# Before
- run: npm i -fg corepack && corepack enable

# After  
- run: npm i -g --force corepack && corepack enable

Original prompt

Please change the repo

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