Macro instrument 

macro_rules! instrument {
    ($name:expr, $statement:expr, $attributes:expr) => { ... };
}

Macro to create a tracing span for a SQLx operation with OpenTelemetry-compatible fields.

• $name: The operation name (e.g., “sqlx.execute”).
• $statement: The SQL statement being executed.
• $attributes: Connection or pool attributes for peer and db context.

This macro is used internally by the crate to instrument all major SQLx operations.