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

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https://hg.mozilla.org/integration/gaia-1_3/rev/ddc316a29271
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Merge pull request #15950 from gtorodelvalle/contacts-967540-invalid-dates-in-gmail

Bug 967540 - [Contacts] Exporting to SD card contacts imported from Gmail with invalid dates never ends
(cherry picked from commit 95cea779da64742c1f46da1a628c8c7a21604d8e)

Conflicts:
	build/jshint/xfail.list