Update patch version for packages (#5695)

eng/Versions.props

@@ -5,6 +5,7 @@
     <ProductVersion>8.1.1</ProductVersion>
     <MajorVersion>8</MajorVersion>
     <MinorVersion>1</MinorVersion>
+    <PatchVersion>1</PatchVersion>
     <WcfAssemblyVersion>8.1.1.0</WcfAssemblyVersion>
     <!-- To produce shipping versions in non-official builds, instead of default fixed dummy version number (42.42.42.42). -->
     <DotNetUseShippingVersions>true</DotNetUseShippingVersions>