Increment build version for 1.4-preview and 0.16-preview release. (#4158)

* Increment build version for 1.4-preview and 0.16-preview release.

* PR feedback.

Author: codemzs

build/BranchInfo.props

@@ -27,12 +27,12 @@
     <MajorVersion>1</MajorVersion>
     <MinorVersion>4</MinorVersion>
     <PatchVersion>0</PatchVersion>
-    <PreReleaseLabel>preview</PreReleaseLabel>
+    <PreReleaseLabel>preview2</PreReleaseLabel>
   </PropertyGroup>
   <PropertyGroup Condition="'$(IsStableProject)' != 'true'">
     <MajorVersion>0</MajorVersion>
     <MinorVersion>16</MinorVersion>
     <PatchVersion>0</PatchVersion>
-    <PreReleaseLabel>preview</PreReleaseLabel>
+    <PreReleaseLabel>preview2</PreReleaseLabel>
   </PropertyGroup>
 </Project>