build(ci): fix rultor release script

Author: rultor

.rultor.yml

@@ -22,7 +22,10 @@ release:
   script: |-
     sed -i "s/^\(version:\).*/\1 $tag/" pubspec.yaml
     sed -i "/\[Unreleased\]/a\\\n## [$tag] - $(date '+%F')" CHANGELOG.md
-    git commit -am "version $tag"
     mkdir -p ~/.pub-cache
     mv ../credentials.json ~/.pub-cache/credentials.json
     flutter pub publish -f
+    git commit -am "version $tag"
+    git checkout master
+    git merge __rultor
+    git checkout __rultor

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.2.6] - 2021-05-01
 ### Changed
 - read-only master branch with [rultor](http://www.rultor.com/).
 - automate releasing with rultor.

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_brand_palettes
 description: Collection of declarative classes for the color palettes of popular brands and companies, as well as for the Material Design standard.
-version: 0.2.5+2
+version: 0.2.6
 homepage: https://dartoos.dev
 repository: https://github.com/rafamizes/flutter_brand_palettes