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

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https://hg.mozilla.org/integration/gaia-central/rev/5c017f5f117e
Author: Arnau <arnau@arnaumarch.com>
Desc: Merge pull request #21487 from rnowm/1035670

Bug 1035670 - [BB] Create new shared component to manage icon fonts r=pivanov

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https://hg.mozilla.org/integration/gaia-central/rev/b44f1a1a1c57
Author: rnowm <arnau@arnaumarch.com>
Desc: Bug 1035670 - [BB] Create new shared component to manage icon fonts
Bumping manifests a=b2g-bump