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

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https://hg.mozilla.org/integration/gaia-central/rev/458177b8f42f
Author: KWierso <kwierso@gmail.com>
Desc: Revert "Merge pull request #21719 from asutherland/cleanup-mancas-bug906580" for Gu failures

This reverts commit 72f75b0886b7aa50b8450adc14a141c4b8fae07a, reversing
changes made to f31f95ec18882decc43c0e2f02df581580a32dc8.
Bumping manifests a=b2g-bump