PdoConnectionInterface::getActivePDO() should return PDO

[vjik]

Currently return type is nullable:

db/src/Driver/Pdo/PdoConnectionInterface.php

Line 28 in cc8ae67

public function getActivePDO(string $sql = '', bool $forRead = null): PDO|null;

From phpdoc:

This method will open the DB connection and then return {@see PDO}.

Abstract class AbstractPdoConnection also always returns PDO:

db/src/Driver/Pdo/AbstractPdoConnection.php

Line 141 in cc8ae67

public function getActivePDO(string|null $sql = '', bool|null $forRead = null): PDO