Bump version to 21.1.0 (#877)

* Bump version to 21.1.0

* Update CHANGELOG.md

* Update CHANGELOG.md

---------

Co-authored-by: HarelM <[email protected]>
Co-authored-by: Harel M <[email protected]>

Author: github-actions[bot]

CHANGELOG.md

@@ -1,13 +1,17 @@
 ## main
 
 ### ✨ Features and improvements
-
-- Added `centerAltitude` property to stylesheet ([#851](https://github.com/maplibre/maplibre-style-spec/issues/851))
 - _...Add new stuff here..._
 
 ### 🐞 Bug fixes
 - _...Add new stuff here..._
 
+## 21.1.0
+
+### ✨ Features and improvements
+
+- Added `centerAltitude` property to stylesheet ([#851](https://github.com/maplibre/maplibre-style-spec/issues/851))
+
 ## 21.0.0
 
 ### ✨ Features and improvements

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "@maplibre/maplibre-gl-style-spec",
   "description": "a specification for maplibre styles",
-  "version": "21.0.0",
+  "version": "21.1.0",
   "author": "MapLibre",
   "keywords": [
     "mapbox",