bump version to 0.3 since that's the one we're going to ship for build (#3416)

Author: Dmitry-A

build/BranchInfo.props

@@ -28,7 +28,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(IsStableProject)' != 'true'">
     <MajorVersion>0</MajorVersion>
-    <MinorVersion>2</MinorVersion>
+    <MinorVersion>3</MinorVersion>
     <PatchVersion>0</PatchVersion>
     <PreReleaseLabel>preview</PreReleaseLabel>
   </PropertyGroup>