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

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https://hg.mozilla.org/integration/gaia-central/rev/02d289ccb530
Author: Salvador de la Puente González <salva@unoyunodiez.com>
Desc: Merge pull request #10993 from leob2g/Bug_894205_Usage_Graph_Line_Is_Not_Shown_At_End

Bug 894205 -[CostControl] Usage Graph is not shown at the end
r=lodr

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https://hg.mozilla.org/integration/gaia-central/rev/c486029089e6
Author: sarath27.vs <sarath27.vs@lge.com>
Desc: Bug 894205 - Usage Graph is not shown at the end