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

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

@@ -9,13 +9,18 @@ import (
 // Paths is specified by OpenAPI/Swagger standard version 3.0.
 type Paths map[string]*PathItem
 
-func (paths Paths) Validate(c context.Context) error {
+func (value Paths) Validate(ctx context.Context) error {
 	normalizedPaths := make(map[string]string)
-	for path, pathItem := range paths {
+	for path, pathItem := range value {
 		if path == "" || path[0] != '/' {
 			return fmt.Errorf("path %q does not start with a forward slash (/)", path)
 		}
 
+		if pathItem == nil {
+			value[path] = &PathItem{}
+			pathItem = value[path]
+		}
+
 		normalizedPath, pathParamsCount := normalizeTemplatedPath(path)
 		if oldPath, ok := normalizedPaths[normalizedPath]; ok {
 			return fmt.Errorf("conflicting paths %q and %q", path, oldPath)
@@ -44,7 +49,7 @@ func (paths Paths) Validate(c context.Context) error {
 			}
 		}
 
-		if err := pathItem.Validate(c); err != nil {
+		if err := pathItem.Validate(ctx); err != nil {
 			return err
 		}
 	}