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

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https://hg.mozilla.org/integration/gaia-2_0/rev/693ff3608f96
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #21907 from timdream/input-mgmt-get-feature

Bug 1039171 - Runtime decision on whether or not to run preload keyboard oop, r=rudyl
Bumping manifests a=b2g-bump