Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/dd08d9ad8e00
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Merge pull request #21942 from dominickuo/bug-1038165

Bug 1038165 - [Callscreen] check displayed before connecting to SCO, r=Rik(cherry picked from commit cabe1a8891961e8654ef4a60491e9907c7217465)
Bumping manifests a=b2g-bump