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

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https://hg.mozilla.org/integration/gaia-2_0/rev/e3aa97f612bc
Author: Oscar Patiño <opatinowebrtc@gmail.com>
Desc: bug 1091775 - adding new png files for status bar
Bumping manifests a=b2g-bump