fix(taiko-client): fix an issue in isBatchPreconfirmed

[davidtaikocha]

We need to check the derivation of each block instead of the last one.

[Copilot]

Pull Request Overview

This PR fixes an issue in the taiko-client where the derivation of each block is now checked instead of validating only the last one.

• Updated isBatchPreconfirmed to accept a parent header parameter for improved block derivation validation
• Revised the logic in isBatchPreconfirmed (common.go) to iterate through each block in the batch and update the parent header accordingly

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/taiko-client/driver/chain_syncer/blob/blocks_inserter/pacaya.go	Modified call to isBatchPreconfirmed to include a parent header parameter
packages/taiko-client/driver/chain_syncer/blob/blocks_inserter/common.go	Updated isBatchPreconfirmed to loop through all blocks and return the header of the last validated block

Comments suppressed due to low confidence (2)

packages/taiko-client/driver/chain_syncer/blob/blocks_inserter/common.go:205

• [nitpick] Consider renaming the 'parent' parameter to something like 'prevBlockHeader' to clarify that it represents the header of the previously validated block.

parent *types.Header,

packages/taiko-client/driver/chain_syncer/blob/blocks_inserter/pacaya.go:151

• Ensure that the 'parent' variable passed to isBatchPreconfirmed is initialized correctly in this context, as its value drives the derivation check for every block.

parent,