[fix]: useDebounceCallback behavior when delay changed

[notcodev]

Fix notes:

• Added cancel method to debounce function
• Created ref that stores last debounce function
• Cancel last debounce function when new debounce function called
• Update last debounce function ref only when component is mounted (for strict mode support)

Test cases changes:

• Rewrote test case responsible for checking new function when delay changes
• Added new test case responsible for checking callbacks cancelation that called before delay changed