go.mod: Update oapi-codegen and kin-openapi

vendor/github.com/getkin/kin-openapi/openapi3/callback.go

@@ -1,13 +1,34 @@
 package openapi3
 
-import "context"
+import (
+	"context"
+	"fmt"
+
+	"github.com/go-openapi/jsonpointer"
+)
+
+type Callbacks map[string]*CallbackRef
+
+var _ jsonpointer.JSONPointable = (*Callbacks)(nil)
+
+func (c Callbacks) JSONLookup(token string) (interface{}, error) {
+	ref, ok := c[token]
+	if ref == nil || !ok {
+		return nil, fmt.Errorf("object has no field %q", token)
+	}
+
+	if ref.Ref != "" {
+		return &Ref{Ref: ref.Ref}, nil
+	}
+	return ref.Value, nil
+}
 
 // Callback is specified by OpenAPI/Swagger standard version 3.0.
 type Callback map[string]*PathItem
 
-func (value Callback) Validate(c context.Context) error {
+func (value Callback) Validate(ctx context.Context) error {
 	for _, v := range value {
-		if err := v.Validate(c); err != nil {
+		if err := v.Validate(ctx); err != nil {
 			return err
 		}
 	}