Issue having null values in database because of string type

[guraurobi]

module-db/src/Codeception/Lib/Driver/Db.php

Line 348 in 1858892

protected function isBinary(string $string): bool

This new addition broke all usages of haveInDatabase of null data for a certain column.

Example of fail:
$I->haveInDatabase('table_name', ['column_name' => null]);

Results in:

[TypeError] Codeception\Lib\Driver\Db::isBinary(): Argument #1 ($string) must be of type string, null given, called in /app/vendor/codeception/module-db/src/Codeception/Lib/Driver/Db.php on line 297

[troy-rudolph]

Please merge #63. The fix is there.

[guraurobi]

Hey @troy-rudolph! Thanks so much for this fast fix, but please check my comments, might be useful!