Summary of Changes

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This pull request refactors the wheel extraction mechanism within the rules_python repository by introducing a shared utility function. This change centralizes the logic for handling .whl file extraction, including a specific workaround for older Bazel versions that do not natively support .whl extraction. The primary goal is to improve code maintainability and simplify future updates related to wheel processing by consolidating common extraction patterns into a single, reusable helper.

Highlights

• Centralized Wheel Extraction Logic: A new _extract helper function has been introduced in python/private/repo_utils.bzl to consolidate the logic for extracting archive files, particularly Python Wheel (.whl) files.
• Bazel 7 Compatibility Encapsulated: The new _extract helper now encapsulates the workaround for Bazel 7, which involves symlinking .whl files to .zip files before extraction, based on the supports_whl_extraction configuration flag.
• Refactored Wheel Handling Modules: The patch_whl.bzl and whl_library.bzl modules have been updated to utilize the new repo_utils.extract helper, simplifying their internal logic for wheel extraction and removing redundant code.
• Configuration Dependency Added: A new dependency on @rules_python_internal//:rules_python_config_bzl has been added to python/private/pypi/BUILD.bazel and patch_whl.bzl to access the rp_config.supports_whl_extraction flag, which guides the behavior of the new extraction helper.

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