Small typo in Session\Handlers\BaseHandler.php

[obozdag]

$this->ipAdddress to $this->ipAddress (triple d)

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Description
Explain what you have changed, and why.

Checklist:

• Securely signed commits
• Component(s) with PHPdocs
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

---------Remove from here down in your description----------

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