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

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https://hg.mozilla.org/integration/gaia-1_4/rev/234df820c8eb
Author: AndreiH <andrei.hutusoru@softvision.ro>
Desc: Merge pull request #19588 from viorelaioia/bug_1003175_v1.4

Bug 1003175 - [v1.4] Find a suitable wait in cards view method

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https://hg.mozilla.org/integration/gaia-1_4/rev/dc58328e43f4
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1003175 - [v1.4] Find a suitable wait in cards view method
Bumping manifests a=b2g-bump