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

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https://hg.mozilla.org/integration/gaia-central/rev/3207323b68e6
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #19103 from crdlc/bug-1006521

Bug 1006521 - [Contacts][Facebook] Wrong behavior when removing from an imported FB contact Name or Last name fields

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https://hg.mozilla.org/integration/gaia-central/rev/1a5bbcbccee2
Author: crdlc <crdlc@tid.es>
Desc: Bug 1006521 - [Contacts][Facebook] Wrong behavior when removing from an imported FB contact Name or Last name fields
Bumping manifests a=b2g-bump