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

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https://hg.mozilla.org/integration/gaia-2_0/rev/65ddf332b61b
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Bug 980217 - Remove extra line leftover from rebasing. a=bustage
Bumping manifests a=b2g-bump