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

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https://hg.mozilla.org/integration/gaia-1_3/rev/1f7429eb39e8
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #16929 from dominickuo/v1.3-bug-958470

Bug 958470 - [Ringtones] set ringer type to the ringtones player

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https://hg.mozilla.org/integration/gaia-1_3/rev/e9d671253f34
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Bug 958470 - [Ringtones] set ringer type to the ringtones player
Bumping manifests a=b2g-bump