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

========

https://hg.mozilla.org/integration/gaia-central/rev/fec9d6a848c3
Author: Guillaume C. Marty <gmarty@users.noreply.github.com>
Desc: Merge pull request #23076 from gmarty/Bug-1056004-Homescreen-should-show-max-status-bar

Bug 1056004 - Homescreen should show the max status bar

========

https://hg.mozilla.org/integration/gaia-central/rev/a4a5cf4ec73c
Author: Guillaume Marty <edo999@gmail.com>
Desc: Bug 1056004 - Homescreen should show the max status bar
Bumping manifests a=b2g-bump