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

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https://hg.mozilla.org/integration/gaia-central/rev/9452e77fc03b
Author: Salvador de la Puente González <salva@unoyunodiez.com>
Desc: Merge pull request #13556 from lodr/bug-934996-data-error

Bug 934996 - Changing issues indicators and preventing duplicated events...
r=jmcf

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https://hg.mozilla.org/integration/gaia-central/rev/a50db3ea94be
Author: lodr <salva@unoyunodiez.com>
Desc: Bug 934996 - Changing issues indicators and preventing duplicated events to affect the startup process.