feat(primitives): replace Option by Ziglang's native optional type

[tcoratger]

Description:

Currently, there is an Option function in the codebase designed to mimic the behavior of Rust's Option type. You can find the code here:

zevm/src/primitives/src/utils.zig

Lines 3 to 5 in 0c37c6b

	pub fn Option(comptime T: type) type {
	return union(enum) { None: bool, Some: T };
	}

However, in order to align more closely with Ziglang's idiomatic style, it is advisable to replace this custom Option function with Ziglang's native optional type. Ziglang provides a robust and efficient way of handling optional values. You can refer to the Ziglang documentation on Optionals for more information: Zig Documentation - Optionals.

This change will not only make the codebase more in line with Ziglang conventions but also improve readability and maintainability.

Proposed Solution:

Replace the custom Option function with Ziglang's native optional type where applicable in the codebase.

Additional Context:

This change aims to enhance code quality and maintainability by leveraging Ziglang's built-in features. It will also promote consistency with Ziglang best practices.