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

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https://hg.mozilla.org/integration/gaia-2_0/rev/7567e8c7895c
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Merge pull request #22807 from 6a68/bug-1038992-fixedup

Bug 1038992 - FxA "forgot password" link crashes refreshAuth flow. r=fer...

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https://hg.mozilla.org/integration/gaia-2_0/rev/76627fae2ee8
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #22771 from jmcanterafonseca/fix_export_settings

Bug 1050843 - [B2G][Contacts] Export contacts buttons are overlaying Set...

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https://hg.mozilla.org/integration/gaia-2_0/rev/d4da245c570c
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #22689 from KevinGrandon/bug_1051061_homescreen_dragdrop_error

Bug 1051061 - [VerticalHomescreen] TypeError: this.grid._grid.dragdrop is undefined