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

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https://hg.mozilla.org/integration/gaia-2_0/rev/c2b38db6db7d
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #22177 from steveck-chung/message-safe-lazyloader"

This reverts commit f33c6a11a2e03833e17e43d23be8cc05ea99445a.
Bumping manifests a=b2g-bump