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

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https://hg.mozilla.org/integration/gaia-central/rev/a7c053f5e582
Author: EragonJ (E.J.) <eragonj@eragonj.me>
Desc: Merge pull request #26011 from EragonJ/bug-1096737

Bug 1096737 - [Settings] All unit tests of settings app are not running

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https://hg.mozilla.org/integration/gaia-central/rev/c49ba17a9061
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 1096737 - [Settings] All unit tests of settings app are not running
Bumping manifests a=b2g-bump