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

========

https://hg.mozilla.org/integration/gaia-central/rev/e966243bcb83
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20983 from KevinGrandon/bug_1030200_collection_error_localization

Bug 1030200 - [vertical] Smart Collection name is not localized in offline-webresults error message

========

https://hg.mozilla.org/integration/gaia-central/rev/d20a7b5ba700
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1030200 - [vertical] Smart Collection name is not localized in offline-webresults error message r=lightsofapollo
Bumping manifests a=b2g-bump