Fix request destroy check for Node.js 12

source/core/index.ts

@@ -333,7 +333,7 @@ export default class Request extends Duplex implements RequestEvents<Request> {
 			// Node.js parser is really weird.
 			// It emits post-request Parse Errors on the same instance as previous request. WTF.
 			// Therefore we need to check if it has been destroyed as well.
-			if (response && !response.rawBody && !this._request?.destroyed) {
+			if (response && !response.rawBody && !this._request?.socket?.destroyed) {
 				// @types/node has incorrect typings. `setEncoding` accepts `null` as well.
 				response.setEncoding(this.readableEncoding!);