Update a few dependencies

github.com/go-openapi/*
github.com/asaskevich/govalidator

vendor/github.com/go-openapi/swag/loading.go

@@ -43,7 +43,13 @@ func LoadStrategy(path string, local, remote func(string) ([]byte, error)) func(
 	if strings.HasPrefix(path, "http") {
 		return remote
 	}
-	return func(pth string) ([]byte, error) { return local(filepath.FromSlash(pth)) }
+	return func(pth string) ([]byte, error) {
+		upth, err := pathUnescape(pth)
+		if err != nil {
+			return nil, err
+		}
+		return local(filepath.FromSlash(upth))
+	}
 }
 
 func loadHTTPBytes(timeout time.Duration) func(path string) ([]byte, error) {