Update release-toolkit to 2.3.0

Author: oguzkocer

Gemfile.lock

@@ -165,7 +165,7 @@ GEM
       xctest_list (>= 1.2.1)
     fastlane-plugin-trainer (0.4.1)
       trainer (>= 0.7.0)
-    fastlane-plugin-wpmreleasetoolkit (2.2.0)
+    fastlane-plugin-wpmreleasetoolkit (2.3.0)
       activesupport (~> 5)
       bigdecimal (~> 1.4)
       chroma (= 0.2.0)
@@ -238,7 +238,7 @@ GEM
     mini_magick (4.11.0)
     mini_mime (1.1.2)
     mini_portile2 (2.6.1)
-    minitest (5.14.4)
+    minitest (5.15.0)
     molinillo (0.8.0)
     multi_json (1.15.0)
     multipart-post (2.0.0)

fastlane/Fastfile

@@ -66,6 +66,7 @@ platform :ios do
   ENV['DOWNLOAD_METADATA'] = 'fastlane/download_metadata.swift'
   ENV['PROJECT_ROOT_FOLDER'] = './'
   ENV['APP_STORE_STRINGS_FILE_NAME'] = 'AppStoreStrings.pot'
+  ENV['FL_RELEASE_TOOLKIT_DEFAULT_BRANCH'] = 'trunk'
 
   # Other defines used across multiple lanes
   REPOSITORY_NAME = 'woocommerce-ios'