Bumping gaia.json for 4 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/23c4cd275c42
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #13407 from lightsofapollo/marionette-runner-vbump-0.3

NO BUG - Vbump marionette-js-runner to 0.3.2 a=me NPOTB

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https://hg.mozilla.org/integration/gaia-central/rev/b6847439226d
Author: James Lal <james@lightsofapollo.com>
Desc: NO BUG - Vbump marionette-js-runner to 0.3.2 a=me NPOTB

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https://hg.mozilla.org/integration/gaia-central/rev/cfdc5ad8e536
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #13336 from ian-liu/bluetooth/Bug929306_multiple_files_transfer_UI

Bug 929306 - [Gaia][Bluetooth File Transfer] Multiple file transfer UI, r=@alivedise

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https://hg.mozilla.org/integration/gaia-central/rev/72c01781d491
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 929306 - [Gaia][Bluetooth File Transfer] Multiple file transfer UI