Fix MySQLRepository for DBAL 4.x compatibility

Remove manual connection reconnection logic since DBAL 4.x handles
reconnection automatically. The connect() method became protected
in DBAL 4.x, causing 'Call to protected method' errors.

Changes:
- Removed manual ping/close/connect logic from getConnection()
- DBAL 4.x automatically handles lost connections and reconnection
- Kept ping() method as required by PingableConnection interface

This fixes the repository to work with DBAL 4.x while maintaining
the same functionality.

Author: cyppe

src/MySQLReplication/Repository/MySQLRepository.php

@@ -37,8 +37,8 @@ public function getFields(string $database, string $table): FieldDTOCollection
                     `TABLE_SCHEMA` = ?
                 AND
                     `TABLE_NAME` = ?
-            ORDER BY 
-                ORDINAL_POSITION        
+            ORDER BY
+                ORDINAL_POSITION
        ';
 
         return FieldDTOCollection::makeFromArray(
@@ -95,11 +95,8 @@ public function ping(Connection $connection): bool
 
     private function getConnection(): Connection
     {
-        if ($this->ping($this->connection) === false) {
-            $this->connection->close();
-            $this->connection->connect();
-        }
-
+        // In DBAL 4.x, connections handle reconnection automatically
+        // No need for manual ping/reconnect logic
         return $this->connection;
     }
 }