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

========

https://hg.mozilla.org/integration/gaia-central/rev/9863517bfb59
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Merge pull request #22187 from mcav/kill-unused-connections

Bug 1042197 - [Email] Close IMAP connections. r=asuth

========

https://hg.mozilla.org/integration/gaia-central/rev/1ccba738ea37
Author: Marcus Cavanaugh <m@mcav.com>
Desc: Bug 1042197 - [Email] Close IMAP connections. r=asuth
Bumping manifests a=b2g-bump