fix: DispatchQueue for synchronizing the session configuration and start operations

[jimcase]

This PR addresses synchronization issues reported on an Apple Developer Forum thread, where users encountered NSGenericException due to premature execution of AVCaptureSession.startRunning(). The problem arises from startRunning() being called before the completion of commitConfiguration(), especially noted in iOS 17 and some iOS 16 devices.

To resolve this, we introduce a serial DispatchQueue for managing AVCaptureSession operations in a FIFO (First In, First Out) sequence. Configuration tasks are encapsulated within a synchronous block to ensure complete setup before proceeding. Following this, startRunning() is scheduled asynchronously, guaranteeing it executes only after the configuration is fully committed. This approach not only prevents the NSGenericException by ensuring proper sequence of operations but also maintains high performance and responsiveness of the application.## Pull request checklist

Related PR fix(barcode-scanning): add delay before starting camera session #188

Please check if your PR fulfills the following requirements:

• The changes have been tested successfully.
• A changeset has been created (npm run changeset).
• I have read and followed the pull request guidelines.

[robingenz]

Please create your PR against next and not against main.

[robingenz]

Suggested change

	Introduce a serial DispatchQueue for managing AVCaptureSession operations in a FIFO (First In, First Out) sequence. Configuration tasks are encapsulated within a synchronous block to ensure complete setup before proceeding. Following this, startRunning() is scheduled asynchronously, guaranteeing it executes only after the configuration is fully committed.
	This approach not only prevents the NSGenericException by ensuring proper sequence of operations but also maintains high performance and responsiveness of the application.
	Related PR [fix(barcode-scanning): add delay before starting camera session #188](https://github.com/capawesome-team/capacitor-mlkit/pull/188)
	fix(ios): use queue for synchronizing the session configuration and start operations of the `scan(...)` method

[robingenz]

Please remove this empty line.