Use MySqlConnector namespace for DI methods.

This aligns with the latest official guidance to NOT use the Microsoft.Extensions.DependencyInjection namespace: dotnet/AspNetCore.Docs#23211, dotnet/AspNetCore.Docs#27018.

Author: bgrainger

src/MySqlConnector.DependencyInjection/MySqlConnectorServiceCollectionExtensions.cs

@@ -1,9 +1,9 @@
 using System.Data.Common;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Logging;
-using MySqlConnector;
 
-namespace Microsoft.Extensions.DependencyInjection;
+namespace MySqlConnector;
 
 /// <summary>
 /// Extension method for setting up MySqlConnector services in an <see cref="IServiceCollection" />.

src/MySqlConnector.Logging.Microsoft.Extensions.Logging/MySqlConnectorLoggingExtensions.cs

@@ -1,8 +1,7 @@
 using System;
 using Microsoft.Extensions.Logging;
-using MySqlConnector.Logging;
 
-namespace Microsoft.Extensions.DependencyInjection;
+namespace MySqlConnector.Logging;
 
 public static class MySqlConnectorLoggingExtensions
 {