fix header parameters, update dependency on codable.

Author: hpoul

lib/src/v3/parameter.dart

@@ -180,6 +180,7 @@ class APIParameter extends APIObject {
   /// The location of the parameter.
   ///
   /// REQUIRED. Possible values are "query", "header", "path" or "cookie".
+  /// EXCEPT when used as response header 🤦️
   APIParameterLocation? location;
 
   /// The schema defining the type used for the parameter.
@@ -236,7 +237,7 @@ class APIParameter extends APIObject {
 
     name = object.decode("name");
     description = object.decode("description");
-    location = APIParameterLocationCodec.decode(object.decode("in"))!;
+    location = APIParameterLocationCodec.decode(object.decode("in"));
     _required = object.decode("required");
 
     _deprecated = object.decode("deprecated");

pubspec.yaml

@@ -9,7 +9,7 @@ environment:
   sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
-  codable_forked: ^1.0.0
+  codable_forked: ^1.0.0+1
   meta: ^1.3.0
 
 dev_dependencies: