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

========

https://hg.mozilla.org/integration/gaia-central/rev/e2295890e6e1
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #26961 from huchengtw-moz/bug-1114397-keyboard-on-notifications

Bug 1114397 - [Stingray] Use keyboard to move the focus between notifica..., r=lchang

========

https://hg.mozilla.org/integration/gaia-central/rev/a98713b53511
Author: John Hu <johu@mozilla.com>
Desc: Bug 1114397 - [Stingray] Use keyboard to move the focus between notification buttons
Bumping manifests a=b2g-bump