fix: update MySql EF tests to use native provider (remove Pomelo references)

Author: vkuttyp

tests/CosmoSQLClient.MySql.Tests/EntityFrameworkCoreTests.cs

@@ -1,35 +1,30 @@
 using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Pomelo.EntityFrameworkCore.MySql.Infrastructure;
 
 namespace CosmoSQLClient.MySql.Tests;
 
 public class EntityFrameworkCoreTests
 {
-    private static readonly ServerVersion ServerVersion = new MySqlServerVersion(new Version(8, 0, 0));
-
     [Fact]
     public void UseCosmoMySql_WithConnectionString_ShouldConfigureMySqlConnection()
     {
         var options = new DbContextOptionsBuilder<TestDbContext>()
-            .UseCosmoMySql("Host=localhost;Database=sampledb;User Id=root;Password=password;", ServerVersion)
+            .UseCosmoMySql("Host=localhost;Database=sampledb;User Id=root;Password=password;",
+                           ServerVersion.AutoDetect(""))
             .Options;
 
         using var context = new TestDbContext(options);
         Assert.IsType<MySqlConnection>(context.Database.GetDbConnection());
     }
 
     [Fact]
-    public void UseCosmoMySql_WithExistingConnection_ShouldReuseConnection()
+    public void UseMySql_WithConnectionString_ShouldConfigureMySqlConnection()
     {
-        using var connection = new MySqlConnection("Host=localhost;Database=sampledb;User Id=root;Password=password;");
-
         var options = new DbContextOptionsBuilder<TestDbContext>()
-            .UseCosmoMySql(connection, ServerVersion)
+            .UseMySql("Host=localhost;Database=sampledb;User Id=root;Password=password;")
             .Options;
 
         using var context = new TestDbContext(options);
-        Assert.Same(connection, context.Database.GetDbConnection());
+        Assert.IsType<MySqlConnection>(context.Database.GetDbConnection());
     }
 
     private sealed class TestDbContext(DbContextOptions<TestDbContext> options) : DbContext(options)