Bump version to 20.4.0 (#859)

* Bump version to 20.4.0

* Update CHANGELOG.md

---------

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

Author: github-actions[bot]

CHANGELOG.md

@@ -1,14 +1,17 @@
 ## main
 
 ### ✨ Features and improvements
-
-* Added `roll` property to stylesheet ([#850](https://github.com/maplibre/maplibre-style-spec/issues/850))
 - _...Add new stuff here..._
 
 ### 🐞 Bug fixes
-
 - _...Add new stuff here..._
 
+## 20.4.0
+
+### ✨ Features and improvements
+
+* Added `roll` property to stylesheet ([#850](https://github.com/maplibre/maplibre-style-spec/issues/850))
+
 ## 20.3.1
 
 ### 🐞 Bug fixes

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "@maplibre/maplibre-gl-style-spec",
   "description": "a specification for maplibre styles",
-  "version": "20.3.1",
+  "version": "20.4.0",
   "author": "MapLibre",
   "keywords": [
     "mapbox",