Updating package validation version to 9.4.0 (#6272)

Author: joperezr

eng/Versions.props

@@ -6,7 +6,7 @@
     <PreReleaseVersionLabel>preview</PreReleaseVersionLabel>
     <PreReleaseVersionIteration>1</PreReleaseVersionIteration>
     <VersionPrefix>$(MajorVersion).$(MinorVersion).$(PatchVersion)</VersionPrefix>
-    <ApiCompatBaselineVersion>9.3.0</ApiCompatBaselineVersion>
+    <ApiCompatBaselineVersion>9.4.0</ApiCompatBaselineVersion>
     <AssemblyVersion>$(MajorVersion).$(MinorVersion).0.0</AssemblyVersion>
     <!--
         When StabilizePackageVersion is set to 'true', this branch will produce stable outputs for 'Shipping' packages