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

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https://hg.mozilla.org/integration/gaia-central/rev/0a4511ce532a
Author: Jared Hirsch <ohai@6a68.net>
Desc: Merge pull request #20383 from 6a68/resubmit-bug-1004251-fxa-resend-email

Bug 1004251 - (resubmitted) Add resend verification email to firefox acc...

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https://hg.mozilla.org/integration/gaia-central/rev/eba55d745deb
Author: Jared Hirsch <ohai@6a68.net>
Desc: Bug 1004251 - (resubmitted) Add resend verification email to firefox accounts. r=ferjm,arthurcc
Bumping manifests a=b2g-bump