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

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https://hg.mozilla.org/integration/gaia-central/rev/24ad0668cab1
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Revert "Merge pull request #23331 from zbraniecki/1022767-use-json-l10n-manifests"

This reverts commit 2d16dbb66bc1acdf759e3ad43e5ac9c4c9f9aa2c, reversing
changes made to 001d1761e4685c2a08d3e96bb362f031d47f4033.
Bumping manifests a=b2g-bump