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

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https://hg.mozilla.org/integration/gaia-central/rev/cf967b216cd1
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #25870 from mozilla-b2g/revert-25860-bug1093398-email-double-new-account

Revert "Bug 1093398 - [Email] New account page appears again after tappi...

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https://hg.mozilla.org/integration/gaia-central/rev/0b4a3aa1f8a5
Author: James Burke <jrburke@gmail.com>
Desc: Revert "Bug 1093398 - [Email] New account page appears again after tapping next"
Bumping manifests a=b2g-bump