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

========

https://hg.mozilla.org/integration/gaia-central/rev/1895155057c8
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #11360 from ganesh7/icalGmtParser

ical Gmt parser fix

========

https://hg.mozilla.org/integration/gaia-central/rev/2fa181078cfc
Author: gghosh <ganeshghosh@gmail.com>
Desc: Bug 881214 - when importing caldav calendar repeated events are ignored