Merge pull request #1239 from microsoft/dependabot/nuget/samples/tutorials/c/Ubuntu/SqlServerEFSample/System.Data.SqlClient-4.8.6

Bump System.Data.SqlClient from 4.4.0 to 4.8.6 in /samples/tutorials/c#/Ubuntu/SqlServerEFSample

Author: uc-msft

samples/tutorials/c#/Ubuntu/SqlServerEFSample/SqlServerEFSample.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Data.SqlClient" Version="4.4.0" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.8.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.0" />
   </ItemGroup>