fix: Fixed configureDependencies return type

[utpal-barman]

General

Using void is throwing an error in another project right now where we have a global cubit with multiple use cases as dependencies while opening it complains that the cubit is not registered, I found out that—the cubit was not ready for use while using for the first time, so we must add Future as return type, then it works! injectable official documents are proposing void but should be Future<T>.

• Jira Ticket

Checklists

• Platform specific changes (input, image picking etc) are tested on both of the platforms (Android and iOS)
• It is tested that the UI changes are rendered correctly on different device sizes (such as long lists or expanded rows) with safe area conditions.
• Edge cases, such as responses being empty or invalid, missing data, no internet connection etc, are tested and the app works as expected.

Showcase

• Either showcase screenshots / videos are attached, or this PR does not require such any showcase.