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

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https://hg.mozilla.org/integration/gaia-central/rev/3c2599894c7e
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #23982 from albertopq/1065519-indicator-count

Bug 1065519 - Ambient indicator based on list of notifications r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/2d17d9888f4e
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1065519 - Ambient indicator based on list of notifications
Bumping manifests a=b2g-bump