Phase 1: Enable JSON tests on MariaDB - BadDataJsonDeserialization and ComplexCollectionJson

Removed MariaDB skip conditions from:
- BadDataJsonDeserializationMySqlTest (26 tests)
- ComplexCollectionJsonMySqlTest (2 tests)

These tests use basic JSON storage and extraction which MariaDB 10.5.27+ supports via JSON alias (LONGTEXT with JSON_VALID constraint). No JSON_TABLE or LATERAL queries involved.

Test Results:
- MySQL 8.0.40: All 28 tests passing ✅
- MariaDB 10.5.27: All 28 tests passing ✅ (NEW!)

MariaDB JSON support confirmed for:
- JSON column storage
- JSON validation
- Basic JSON deserialization
- Complex collection persistence to JSON

This is the first step in progressive MariaDB JSON support implementation.

Co-authored-by: renemadsen <[email protected]>

Author: Copilot

test/EFCore.MySql.FunctionalTests/BadDataJsonDeserializationMySqlTest.cs

@@ -7,8 +7,7 @@
 namespace Pomelo.EntityFrameworkCore.MySql.FunctionalTests;
 
 // Re-enabled to test JSON deserialization with bad data
-// Skip on MariaDB as it uses JSON emulation (LONGTEXT) which has different behavior
-[SupportedServerVersionLessThanCondition(nameof(ServerVersionSupport.JsonDataTypeEmulation))]
+// Now testing on both MySQL and MariaDB (MariaDB uses JSON alias for LONGTEXT with validation)
 public class BadDataJsonDeserializationMySqlTest : BadDataJsonDeserializationTestBase
 {
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)

test/EFCore.MySql.FunctionalTests/ComplexCollectionJsonMySqlTest.cs

@@ -21,10 +21,9 @@ namespace Pomelo.EntityFrameworkCore.MySql.FunctionalTests;
 /// 
 /// Requirements:
 /// - MySQL 5.7.8+ (JSON type support)
-/// - MariaDB 10.2.4+ (JSON functions support) - Currently skipped due to JsonDataTypeEmulation limitations
+/// - MariaDB 10.2.7+ (JSON alias for LONGTEXT with JSON_VALID constraint)
 /// </summary>
 [SupportedServerVersionCondition("Json")]
-[SupportedServerVersionLessThanCondition(nameof(ServerVersionSupport.JsonDataTypeEmulation))]
 public class ComplexCollectionJsonMySqlTest : IClassFixture<ComplexCollectionJsonMySqlTest.ComplexCollectionJsonMySqlFixture>
 {
     private readonly ComplexCollectionJsonMySqlFixture _fixture;