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

========

https://hg.mozilla.org/integration/gaia-central/rev/009fcae0968f
Author: Bob Silverberg <bob.silverberg@gmail.com>
Desc: Merge pull request #12265 from anah/gaia_ui_tests_bug_917207

Bug 917207 - Create a system region for cards view and migrate tests to use it

========

https://hg.mozilla.org/integration/gaia-central/rev/a629deb37a8b
Author: Ana Hristova <ana.nikolaeva@gmail.com>
Desc: Bug 917207 - Create a system region for cards view and migrate tests to use it