Fixed spelling mistake in package reference

Author: mattbrailsford

Directory.Packages.props

@@ -11,7 +11,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageVersion Include="Umbraco.Commerce.Cms.Startup" Version="[16.0.0-rc1, 16.999.999)" />
-    <PackageVersion Include="Umbraco.Commerce.Persistance.Sqlite" Version="[16.0.0-rc1, 16.999.999)" />
+    <PackageVersion Include="Umbraco.Commerce.Persistence.Sqlite" Version="[16.0.0-rc1, 16.999.999)" />
     <PackageVersion Include="Umbraco.Deploy.Infrastructure" Version="[16.0.0-rc2, 16.999.999)" />
   </ItemGroup>
 </Project>