Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/df8e7fd90ce1
Author: Manuel Casas Barrado <manuel.casasbarrado@telefonica.com>
Desc: Bug 1054827 - [FTU][FTE] "Enter PIN code" for SIM2 page flashing and keypad not shown after flashing stops

Conflicts:
	apps/system/test/unit/sim_lock_test.js

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https://hg.mozilla.org/integration/gaia-2_0/rev/6cb7218f8559
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #23768 from guilherme-pg/v2.0

Bug 1058330 - Use the 'geolocation-noprompt' permission in Find My Devic...

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https://hg.mozilla.org/integration/gaia-2_0/rev/83afe6003376
Author: Guilherme Goncalves <guilherme.p.gonc@gmail.com>
Desc: Bug 1058330 - Use the 'geolocation-noprompt' permission in Find My Device r=mgoodwin
Bumping manifests a=b2g-bump