Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/6b3fde225754
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #22705 from cctuan/1050670

Bug 1050670 - verify output files from jsmin

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https://hg.mozilla.org/integration/gaia-central/rev/e6d7db0fc10a
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1050670 - verify output files from jsmin

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https://hg.mozilla.org/integration/gaia-central/rev/dbf692dad055
Author: GaryChen, PYChen, Gary <mmm198219@gmail.com>
Desc: Merge pull request #22612 from mpizza/Bug_1050097_add_error_handling

Bug 1050097 - [Camera] Add error handling while |videoStorage.addNamed| occurs error. r=diego.

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https://hg.mozilla.org/integration/gaia-central/rev/550d77d77e68
Author: mpizza <mmm198219@gmail.com>
Desc: Bug 1050097 - [Camera] Add error handling while |videoStorage.addNamed| occurs error.
Bumping manifests a=b2g-bump