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

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https://hg.mozilla.org/integration/gaia-2_0/rev/e930b7d31ce8
Author: Ghislain 'Aus' Lacroix <aus@noiseport.org>
Desc: Merge pull request #22131 from nullaus/bug1041841

bug 1041841 - Manually trigger translation of element since l10n API doe...

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https://hg.mozilla.org/integration/gaia-2_0/rev/def4a81905eb
Author: Ghislain 'Aus' Lacroix <aus@mozilla.com>
Desc: bug 1041841 - Manually trigger translation of element since l10n API does not use MutationObserver in 2.0. r=crdlc
Bumping manifests a=b2g-bump