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

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https://hg.mozilla.org/integration/gaia-central/rev/f8cedc98107a
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #13974 from flodolo/bug942424

Bug 942424 - Fix broken comment format, fix "ﬁle"

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https://hg.mozilla.org/integration/gaia-central/rev/f40f35dc212d
Author: Francesco Lodolo (:flod) <flod@lodolo.net>
Desc: Bug 942424 - Fix broken comment format, replace "ﬁle" with "file"