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

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https://hg.mozilla.org/integration/gaia-central/rev/45e7fde93d39
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #21830 from Rik/facebook-callscreen-1032725

Bug 1032725 - Facebook contact infos are not reflected in call screen

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https://hg.mozilla.org/integration/gaia-central/rev/7f16dfde8b17
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Bug 1032725 - Facebook contact infos are not reflected in call screen
Bumping manifests a=b2g-bump