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

========

https://hg.mozilla.org/integration/gaia-1_4/rev/7f95c81ba168
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #18081 from frsela/STK/Bug989852_v1.4

Bug 989852 - [Sora][STK]'OK ' item is grayed when execute 'Get input' with a default text and user input command., r=vingtetun

========

https://hg.mozilla.org/integration/gaia-1_4/rev/ad8f9fe3ff6a
Author: Fernando Rodriguez Sela <frsela@tid.es>
Desc: Bug 989852 - [Sora][STK]'OK ' item is grayed when execute 'Get input' with a default text and user input command., r=vingtetun
Bumping manifests a=b2g-bump