Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/1b8178de24a1
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #24227 from sv99/1070006

Bug 1070006 - [calendar] unit test change chai.assert api in the new version

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https://hg.mozilla.org/integration/gaia-central/rev/5f2cfc69dda6
Author: sv99 <sv99@inbox.ru>
Desc: Bug 1070006 - [calendar] unit test change chai.assert api in the new version

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https://hg.mozilla.org/integration/gaia-central/rev/ce3151a7058a
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #23856 from yfdyh000/1061096-rc

Bug 1061096 - Fix the edit button is not disabled when downloads list are empty list

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https://hg.mozilla.org/integration/gaia-central/rev/d5f0922b558d
Author: YFdyh000 <yfdyh000@gmail.com>
Desc: Bug 1061096 - Fix the edit button is not disabled
Bumping manifests a=b2g-bump