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

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https://hg.mozilla.org/integration/gaia-central/rev/664c4042fec8
Author: Ed Morley <edmorley@users.noreply.github.com>
Desc: Merge pull request #22595 from millermedeiros/1048953-html-escape-zero

Bug 1048953 - Calendar Day view fails when hour is 00:xx JavaScript error: app://calendar.gaiamobile.org/js/views/current_time.js, line 115: displayHour is null r=gaye

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https://hg.mozilla.org/integration/gaia-central/rev/cb557b464d20
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1048953 - Calendar Day view fails when hour is 00:xx JavaScript error: app://calendar.gaiamobile.org/js/views/current_time.js, line 115: displayHour is null
Bumping manifests a=b2g-bump