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

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https://hg.mozilla.org/integration/gaia-central/rev/583e02eabdac
Author: Florin Strugariu <bebef_1987@yahoo.com>
Desc: Merge pull request #19138 from askeing/1008824

Bug 1008824 - Fix intermittent failure of test_inter_app_comm.py

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https://hg.mozilla.org/integration/gaia-central/rev/d6b270ff0b01
Author: askeing <askeing@gmail.com>
Desc: Bug 1008824 - Fix intermittent failure of test_inter_app_comm.py
Bumping manifests a=b2g-bump