Update proveWithdrawal.md

[danielsimao]

PR-Codex overview

This PR introduces new functions getL2Output and getWithdrawals to handle withdrawal operations in the proveWithdrawal action.

Detailed summary

• Added imports for getL2Output and getWithdrawals
• Replaced usage of walletClientL1.getL2Output with getL2Output
• Updated parameters in client.proveWithdrawal call

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[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 9d6d2bbbae9a66b01c2d56290a628987cade447d

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[vercel[bot]]

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[jxom]

Thanks! Superseded by https://github.com/wevm/viem/commit/3c77ffe71e0d9b638ee1d2945dc25214c6fd56f6. Your commit is preserved.