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

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https://hg.mozilla.org/integration/gaia-central/rev/0445fcd57874
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #14256 from huchengtw-moz/gallery/Bug_877521_the_warning_message_of_pick_is_wrong

Bug 877521 - [Contacts][UX] The warning message of add picture is wrong., r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/f9383043f94e
Author: John Hu <johu@mozilla.com>
Desc: Bug 877521 - [Contacts][UX] The warning message of add picture is wrong.