Remove connection from Context on close

Clear the connection from the Context before disconnecting.

Author: walkor

src/DatabaseManager.php

@@ -141,6 +141,11 @@ private function getHeartbeatSql(string $driver): string
      */
     protected function closeAndFreeConnection($connection): void
     {
+        // Remove connection from Context
+        $name = $connection->getNameWithReadWriteType();
+        $key = "database.connections.$name";
+        Context::set($key, null);
+
         $connection->disconnect();
         $clearProperties = function () {
             $this->queryGrammar = null;