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

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https://hg.mozilla.org/integration/gaia-central/rev/11432e8aa928
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #14061 from arcturus/dsds-api

Bug 940913 - [Contacts] Support contacts import with DSDS

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https://hg.mozilla.org/integration/gaia-central/rev/704534c4d747
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Bug 940913 - [Contacts] Support contacts import with DSDS

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https://hg.mozilla.org/integration/gaia-central/rev/479c1a69ae60
Author: Borja Salguero <borjasalguero@users.noreply.github.com>
Desc: Merge pull request #13779 from pivanov/bug-939153

Bug 939153 - [Action Icons - SMS] Remove shadows from action icons

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https://hg.mozilla.org/integration/gaia-central/rev/89a8b93ec712
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 939153 - [Action Icons - SMS] Remove shadows from action icons