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

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https://hg.mozilla.org/integration/gaia-central/rev/48c58af3a6ee
Author: KWierso <kwierso@gmail.com>
Desc: Revert "Merge pull request #15268 from
KevinGrandon/bug_959284_suggestions_broken to see if it fixes some Gi
near-permafails"

This reverts commit c3f59299bd357cd86166aba122bb3052d8b3af23, reversing
changes made to 4447def31a77fbeee05cf9d96d1de6651aa715fe.