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/b69b35e9a024
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #15035 from timdream/keyboard-remove-ime

Bug 956659 - Only include IMEs for selected layouts in the build, r=yurenju, djf
(cherry picked from commit 6c2dac3444e0d68eb81677434d9c166692d8d247)

Conflicts:
	.gitignore