Operation missing security field

[Folyd]

According to https://spec.openapis.org/oas/v3.1.0#fixed-fields-7.

oas3-rs/crates/oas3/src/spec/operation.rs

Lines 103 to 110 in 95891fd

	// FIXME: Implement
	// /// A declaration of which security mechanisms can be used for this operation. The list of
	// /// values includes alternative security requirement objects that can be used. Only one
	// /// of the security requirement objects need to be satisfied to authorize a request.
	// /// This definition overrides any declared top-level
	// /// [`security`](https://spec.openapis.org/oas/v3.1.0#oasSecurity).
	// /// To remove a top-level security declaration, an empty array can be used.
	// pub security: Option<SecurityRequirement>,