Refactor integration ghostery whitelisting with Cliqz modules

[sammacbeth]

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This PR implements whitelisting of urls in the anti-tracking and adblocker pipelines based on the ghosteryWhitelisted signal. I've also refactored the registration of this whitelisting function to use actions, which will be more robust to changes in the browser-core package.

This required some further changes on the browser-core side, so I have updated the dependency to a build based off 1.26.1.

[jsignanini]

@sammacbeth looks like some check failed, could you please take a look? Maybe some unit test needs updating.

[zarembsky]

Looks OK, though with this change Ghostery code is getting tied more closely to Cliqz code. A change in pipeline steps in Cliqz side might require changes on Ghostery side.

[sammacbeth]

@zarembsky Pipeline steps should not change often on the cliqz side. Also, in comparison to the previous method, this one will fail with an error if an incompatible change occurs.