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

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https://hg.mozilla.org/integration/gaia-central/rev/08746241e68a
Author: evanxd <itoyxd@gmail.com>
Desc: Merge pull request #22352 from evanxd/bug-1023663

Bug 1023663 - [User story] Calendar day view should start at 8 AM r=millermedeiros

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https://hg.mozilla.org/integration/gaia-central/rev/cb6b9fde4277
Author: Evan Xd <itoyxd@gmail.com>
Desc: Bug 1023663 - [User story] Calendar day view should start at 8 AM r=millermedeiros
Bumping manifests a=b2g-bump