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

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https://hg.mozilla.org/integration/gaia-2_1/rev/f27c2b8f87ce
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1061996 - [Camera] Switching between the Camera and Video buttons rapidly can disable them
Bumping manifests a=b2g-bump