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

========

https://hg.mozilla.org/integration/gaia-central/rev/11e6c5916cef
Author: Ben Kelly <bkelly@mozilla.com>
Desc: Merge pull request #13075 from wanderview/contacts-export-search-select

Bug 930693: Fix checkbox select in export search mode. +shepherd r=arcturus

========

https://hg.mozilla.org/integration/gaia-central/rev/f5e529a3db8c
Author: Ben Kelly <ben@wanderview.com>
Desc: Bug 930693: Fix checkbox select in export search mode. +shepherd