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

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https://hg.mozilla.org/integration/gaia-central/rev/d43971c2d2cf
Author: Wilson Page <wilsonpage@me.com>
Desc: Merge pull request #19034 from wilsonpage/1006118

Bug 1006118 - Create gaia-header web component

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https://hg.mozilla.org/integration/gaia-central/rev/01c65927601e
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1006118 - Create gaia-header web component
Bumping manifests a=b2g-bump