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

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https://hg.mozilla.org/integration/gaia-central/rev/ce1789cc91fe
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25905 from KevinGrandon/bug_1095057_fix_unit_test

Bug 1095057 - Intermittent sharedtest/test/unit/option_menu_test.js | OptionMenu Display style doesn't affect confirm dialogs - done() called multiple times

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https://hg.mozilla.org/integration/gaia-central/rev/cfd80d80a2c6
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1095057 - Intermittent sharedtest/test/unit/option_menu_test.js | OptionMenu Display style doesn't affect confirm dialogs - done() called multiple times r=kgrandon
Bumping manifests a=b2g-bump