Move ruby utils to module

[m-bert]

Description

In ruby, functions and variables are global by design. In #4232 we dealt with it by changing name of exported function. However, the correct approach would be to keep our utils in separate module. This has also been introduced in Reanimated.

Test plan

pod install

[Copilot]

Pull request overview

This PR scopes the CocoaPods Ruby helper functions into a dedicated GestureHandlerUtils module to avoid leaking global methods/variables when evaluating the podspec (similar to the approach taken in Reanimated).

Changes:

• Wrap the Ruby utilities in GestureHandlerUtils and expose them via module_function.
• Update the podspec to call GestureHandlerUtils.get_react_native_minor_version instead of a global function.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
packages/react-native-gesture-handler/scripts/gesture_handler_utils.rb	Moves helper methods into a GestureHandlerUtils module to avoid global namespace pollution.
packages/react-native-gesture-handler/RNGestureHandler.podspec	Switches version flag generation to use the new module-scoped utility method.

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