[fix] Refine the implementation of the toParameters method in the container class

Fixed the issue that value conversion to Encodable type failed when there are multiple nested layers in the container.

Author: rakuyoMo

Sources/RequestInfo/APIParameter.swift

@@ -23,14 +23,25 @@ extension APIParameter where Self: Encodable {
 
 extension Array: APIParameter {
     public var toParameters: Encodable {
-        (self as [Any?]).lazy.compactMap { $0 as? Encodable }.map { AnyEncodable($0) }
+        (self as [Any?])
+            .lazy
+            .compactMap {
+                if let value = $0 as? APIParameter { return value.toParameters }
+                return $0 as? Encodable
+            }
+            .map { AnyEncodable($0) }
     }
 }
 
 // MARK: - Dictionary
 
 extension Dictionary: APIParameter where Key == String {
     public var toParameters: Encodable {
-        (self as [String: Any?]).compactMapValues { $0 as? Encodable }.mapValues { AnyEncodable($0) }
+        (self as [String: Any?])
+            .compactMapValues {
+                if let value = $0 as? APIParameter { return value.toParameters }
+                return $0 as? Encodable
+            }
+            .mapValues { AnyEncodable($0) }
     }
 }