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

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https://hg.mozilla.org/integration/gaia-central/rev/bfa262eb3bec
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #25677 from mikehenrty/bug-1069608-remove-workaround

Bug 1069608 - Remove sim pin input scrollIntoView workaround
Bumping manifests a=b2g-bump