Add 105 region code for Dagestan

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 `Respublika Dagestan` - `105`
+
 ## v3.17.0
 
 ### Added

data/subject/codes.json

@@ -38,7 +38,8 @@
         "title": "Республика Дагестан",
         "code": 5,
         "gibdd": [
-            5
+            5,
+            105
         ],
         "code_iso_31662": "RU-DA"
     },