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

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https://hg.mozilla.org/integration/gaia-central/rev/b89cd693bf17
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #11444 from lightsofapollo/vbump-marionette

vbump marionette

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https://hg.mozilla.org/integration/gaia-central/rev/dc3f9ab26dc7
Author: James Lal <james@lightsofapollo.com>
Desc: vbump marionette