Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/64ccf5612392
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Merge pull request #17344 from mcav/apop

Bug 983167 - [email/POP3] broken node-crypto.js shim causes auth failure...
Bumping manifests a=b2g-bump