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

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https://hg.mozilla.org/integration/gaia-2_0/rev/bd6f5b7930ce
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #24404 from nullaus/bug1062136-v2.0

Merge pull request #24149 from nullaus/v2.1

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https://hg.mozilla.org/integration/gaia-2_0/rev/069a1e6cce11
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: bug 1062136 - Event driven screenshot overlay. r=alive,etienne

Merge pull request #24149 from nullaus/v2.1

Merge pull request #23874 from nullaus/bug1044125 a=fabrice
(cherry picked from commit f1d3cd2301b604b7b8b8dcf69bd36ba638c1ab44)
Bumping manifests a=b2g-bump