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

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https://hg.mozilla.org/integration/gaia-central/rev/bde0936f3cd3
Author: Dominic Kuo <dkuo@mozilla.com>
Desc: Merge pull request #12286 from EragonJ/bug-914317

Bug 914317 - Add a check to remove title in prompts, r=@alivedise

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https://hg.mozilla.org/integration/gaia-central/rev/8f87c0f33cf8
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 914317 - Add a check to remove title in prompts

- add unit test for it
- add the quickfix