Added transaction configuration override to client

references #64

Author: transistive

src/Client.php

@@ -81,9 +81,9 @@ public function runStatements(iterable $statements, ?string $alias = null): Cyph
         return $this->startSession($alias, SessionConfiguration::default())->runStatements($statements);
     }
 
-    public function beginTransaction(?iterable $statements = null, ?string $alias = null): UnmanagedTransactionInterface
+    public function beginTransaction(?iterable $statements = null, ?string $alias = null, ?TransactionConfiguration $config = null): UnmanagedTransactionInterface
     {
-        return $this->startSession($alias, SessionConfiguration::default())->beginTransaction($statements);
+        return $this->startSession($alias, SessionConfiguration::default())->beginTransaction($statements, $config);
     }
 
     public function getDriver(?string $alias): DriverInterface

src/Contracts/ClientInterface.php

@@ -63,7 +63,7 @@ public function runStatements(iterable $statements, ?string $alias = null): Cyph
      *
      * @return UnmanagedTransactionInterface<T>
      */
-    public function beginTransaction(?iterable $statements = null, ?string $alias = null): UnmanagedTransactionInterface;
+    public function beginTransaction(?iterable $statements = null, ?string $alias = null, ?TransactionConfiguration $config = null): UnmanagedTransactionInterface;
 
     /**
      * @return DriverInterface<T>