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

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https://hg.mozilla.org/integration/gaia-central/rev/05042b08833e
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #12062 from comoyo/new_ime_webidl2

Bug 906096 - Switch InputMethod to WebIDL in IME tests and FF Nightly

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https://hg.mozilla.org/integration/gaia-central/rev/e7334dad17fb
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Bug 906096 - Switch InputMethod to WebIDL in IME tests and FF Nightly