Simplify checks for Zip64RequiredException

[Goooler]

Refs https://github.com/gradle/gradle/blob/1468e41e448ec0c31f6f5b6999825da00e22c931/platforms/core-configuration/file-operations/src/main/java/org/gradle/api/internal/file/archive/ZipCopyAction.java#L67.

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• CHANGELOG's "Unreleased" section has been updated, if applicable.

[Copilot]

Pull request overview

This PR attempts to simplify the exception handling logic for Zip64RequiredException by removing redundant checks. However, the simplification introduces a bug by only checking if the exception's cause is a Zip64RequiredException, while removing the check for whether the exception itself is a Zip64RequiredException.

Key Changes

• Simplified the conditional check from e is Zip64RequiredException || e.cause is Zip64RequiredException to only cause is Zip64RequiredException
• Changed message extraction from conditional logic to directly using cause.message

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[Copilot]

The simplified check misses the case where e itself is a Zip64RequiredException (not wrapped in another exception). The original code checked both e is Zip64RequiredException and e.cause is Zip64RequiredException, but the new code only checks the cause. This means if a Zip64RequiredException is thrown directly, it won't be caught here and users won't see the helpful error message about enabling zip64.

Consider restoring the check to handle both cases:

val cause = e.cause
if (e is Zip64RequiredException || cause is Zip64RequiredException) {
  val message = if (e is Zip64RequiredException) e.message else cause?.message
  throw Zip64RequiredException(
    """
      $message
      
      To build this archive, please enable the zip64 extension. e.g.
      ...