fix: change number schema types to integer

[VladasZ]

"number" type is too generic and in some code generators such as crate typify it will generate float types instead of integers.

Before:

pub enum Operand {
    #[serde(rename = "uint")]
    Uint {
        display_hints: DisplayHints,
        max_value: f64,
        min_value: f64,
        name: VarName,
        size: f64,
    },
    #[serde(rename = "int")]
    Int {
        display_hints: DisplayHints,
        max_value: f64,
        min_value: f64,
        name: VarName,
        size: f64,
    },

After:

pub enum Operand {
    #[serde(rename = "uint")]
    Uint {
        display_hints: DisplayHints,
        max_value: i64,
        min_value: i64,
        name: VarName,
        size: i64,
    },
    #[serde(rename = "int")]
    Int {
        display_hints: DisplayHints,
        max_value: i64,
        min_value: i64,
        name: VarName,
        size: i64,
    },