Bumping gaia.json for 2 gaia-1_3 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/7b4b2d7686c0
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #15105 from julienw/1.3-fix-gjslint

Bug 957587 - Add the custom jsdoc tags for gjslint check to v1.3 r=rik

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https://hg.mozilla.org/integration/gaia-1_3/rev/ee7120b45e78
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 957587 - Add the custom jsdoc tags for gjslint check to v1.3 r=rik a=npotb