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

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https://hg.mozilla.org/integration/gaia-central/rev/f7ac65df31fb
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Merge pull request #26611 from millermedeiros/1107200-add-account

Bug 1107200 - [Calendar] can't add a new account after removing an account r=yzen

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https://hg.mozilla.org/integration/gaia-central/rev/b605d1b8cb8a
Author: Miller Medeiros <miller@millermedeiros.com>
Desc: Bug 1107200 - [Calendar] can't add a new account after removing an account
Bumping manifests a=b2g-bump