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

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https://hg.mozilla.org/integration/gaia-2_0/rev/94435ad71161
Author: vingtetun <21@vingtetun.org>
Desc: Merge pull request #20161 from theres-waldo/bug1020045

Bug 1020045 - Turn on APZ overscrolling by default. r=kats
Bumping manifests a=b2g-bump