version bump to 2.13.1-beta.2 and changelog

CHANGELOG.md

 # Changelog
 
+### Version 2.13.1
+
+* Support P2P file transfer via WebRTC data channels
+* Fix interoperability issues with Bind 2.0 on ejabberd
+* Bundle Let’s Encrypt root certificates for Android <= 7
+
 ### Version 2.13.0
 
 * Easier access to 'Show QR code'

build.gradle

@@ -97,8 +97,8 @@ android {
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 34
-        versionCode 42081
-        versionName "2.13.0"
+        versionCode 42083
+        versionName "2.13.1-beta.2"
         archivesBaseName += "-$versionName"
         applicationId "eu.siacs.conversations"
         resValue "string", "applicationId", applicationId

fastlane/metadata/android/en-US/changelogs/4208304.txt

+* Support P2P file transfer via WebRTC data channels
+* Fix interoperability issues with Bind 2.0 on ejabberd
+* Bundle Let’s Encrypt root certificates for Android <= 7