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

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https://hg.mozilla.org/integration/gaia-central/rev/45ebcbddf7fa
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #17143 from arcturus/bug-947189

Bug 947189 Long tap on contacts details to choose SIM

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https://hg.mozilla.org/integration/gaia-central/rev/bf3fa5bdca1c
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Bug 947189 Long tap on contacts details to choose SIM
Bumping manifests a=b2g-bump