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

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https://hg.mozilla.org/integration/gaia-central/rev/fe622e1ddef3
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #20766 from millermedeiros/1027349-month-weekday-single-char

Bug 1027349 - [Calendar] month view week day names should be a single char r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/2061fbdeb8e2
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1027349 - [Calendar] month view week day names should be a single char
Bumping manifests a=b2g-bump