Update to use the 1.0.0 version of Microsoft.PowerShell.Pager (#3206)

Author: daxian-dbw

PSReadLine/PSReadLine.csproj

@@ -26,7 +26,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.PowerShell.Pager" version="1.0.0-preview.4" />
+    <PackageReference Include="Microsoft.PowerShell.Pager" version="1.0.0" />
   </ItemGroup>
 
   <ItemGroup>