Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/67f0bdcac540
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #22031 from KevinGrandon/bug_1041993_fix_homescreen_geolocation

Bug 1041993 - Keyboard JS marionette test failure: Show Keyboard App after uninstallation

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https://hg.mozilla.org/integration/gaia-central/rev/0a10af0873c8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1041993 - Keyboard JS marionette test failure: Show Keyboard App after uninstallation r=amirn
Bumping manifests a=b2g-bump