Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/5e2316e5571f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25464 from mikehenrty/bug-1088160-rename-statusbar-test

Bug 1088160 - Rename statusbar_home_button.js to statusbar_home_button_test.js r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/a6cd81bf1967
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1088160 - Rename statusbar_home_button.js to statusbar_home_button_test.js

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https://hg.mozilla.org/integration/gaia-central/rev/e024208e0398
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #25432 from julienw/1082725-fix-intermittent-settings-test

Bug 1082725 - Intermittent settings/test/unit/panels/sound/tone_manager_...

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https://hg.mozilla.org/integration/gaia-central/rev/cb73d5870c30
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1082725 - Intermittent settings/test/unit/panels/sound/tone_manager_test.js | Sound > ToneManager "after each" hook - TypeError: result is null r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/9ec1df796064
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25346 from KevinGrandon/bug_1085667_intermittent_ringtones_share_test

Bug 1085667 - [Music] Try clicking on share button mutliple times

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https://hg.mozilla.org/integration/gaia-central/rev/4f4fca34a26c
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1085667 - [Music] Try clicking on share button mutliple times r=dkuo
Bumping manifests a=b2g-bump