Update System.Data.SqlClient NuGet package

Author: peetw

NHibernate.Spatial.MsSql/NHibernate.Spatial.MsSql.csproj

@@ -20,7 +20,7 @@
 
   <ItemGroup>
     <PackageReference Include="NetTopologySuite.IO.SqlServerBytes" Version="2.0.0" />
-    <PackageReference Include="System.Data.SqlClient" Version="4.8.0" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.8.1" />
   </ItemGroup>
 
   <ItemGroup>