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

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https://hg.mozilla.org/integration/gaia-central/rev/06b2c2b7e8d6
Author: Arnau <arnau@arnaumarch.com>
Desc: Merge pull request #17190 from rnowm/981882

Bug 981882 - Update input field design

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https://hg.mozilla.org/integration/gaia-central/rev/dfd3d3277253
Author: rnowm <arnau@arnaumarch.com>
Desc: Bug 981882 - Update input field design
Bumping manifests a=b2g-bump