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

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https://hg.mozilla.org/integration/gaia-central/rev/adbcadf9674c
Author: Jared Hirsch <ohai@6a68.net>
Desc: Merge pull request #21544 from guilherme-pg/bug1036423-permission-permission

Bug 1036423 - Reintroduce "permissions" permission to Find My Device.

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https://hg.mozilla.org/integration/gaia-central/rev/add0c5e6f2d0
Author: Guilherme Goncalves <guilherme.p.gonc@gmail.com>
Desc: Bug 1036423 - Reintroduce "permissions" permission to Find My Device.
Bumping manifests a=b2g-bump