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

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https://hg.mozilla.org/integration/gaia-central/rev/bca7ae36e995
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #21685 from alivedise/bugzilla/1036671/search-window-is-not-destroyed

Bug 1036671 - Fix the search window crash, r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/a5925827ac33
Author: Alive Kuo <alegnadise@gmail.com>
Desc: Bug 1036671 - Fix the search window crash
Bumping manifests a=b2g-bump