Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/232676db98e4
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #25667 from eeejay/bug-1091731

Bug 1091731 - Introduce gaia-select webcomponent. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/bf3497aa256d
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 1091731 - Introduce gaia-select webcomponent.
Bumping manifests a=b2g-bump