Update version

Author: geaz

CHANGELOG.md

@@ -9,7 +9,7 @@
     <Owners>Gerrit 'Geaz' Gazic</Owners>
     <Description>C# bindings for zserge/webview - Batteries included</Description>
     <PackageId>SharpWebview</PackageId>
-    <PackageVersion>0.12.1</PackageVersion>
+    <PackageVersion>0.13.0</PackageVersion>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/webview/webview_csharp</PackageProjectUrl>
     <NoWarn>CS1591</NoWarn> <!-- mute missing documentation warnings -->