Add 133 region code

Author: yurichechulin

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog][keepachangelog] and this project adheres to [Semantic Versioning][semver].
 
+## Unreleased
+
+### Added
+
+- GIBDD region code for `Vladimirskaja oblast` - `133`
+
 ## v3.20.0
 
 ### Added

data/subject/codes.json

@@ -284,7 +284,8 @@
         "title": "Владимирская область",
         "code": 33,
         "gibdd": [
-            33
+            33,
+            133
         ],
         "code_iso_31662": "RU-VLA"
     },