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

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https://hg.mozilla.org/integration/gaia-central/rev/01829ae8ef73
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #21144 from KevinGrandon/bug_1028690_collection_pin_unpin_icon_update

Bug 1028690 - [Collection app] Pinning/unpinning web results doesn't trigger icon update

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https://hg.mozilla.org/integration/gaia-central/rev/3c075294096c
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1028690 - [Collection app] Pinning/unpinning web results doesn't trigger icon update r=ranbena
Bumping manifests a=b2g-bump