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

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https://hg.mozilla.org/integration/gaia-1_3/rev/5d380d13a2ed
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #17169 from mikehenrty/v1.3-uplift

Merge pull request #14719 from lissyx/bug890440, r=alive

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https://hg.mozilla.org/integration/gaia-1_3/rev/6dd85f58038a
Author: lissyx <lissyx+github@lissyx.dyndns.org>
Desc: Merge pull request #14719 from lissyx/bug890440

Bug 890440 - Disable system workarounds for notification sent with the deprecated API r=alive
(cherry picked from commit b84aa4ba45f5f5e069bbc3b83270fc6e5d53bbd9)

Conflicts:
	apps/system/js/notifications.js
Bumping manifests a=b2g-bump