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

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https://hg.mozilla.org/integration/gaia-central/rev/3762f6bf4b01
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Merge pull request #22090 from dmarcos/bug1041811

[Bug 1041811] [B2G][Camera] The "Select" button is unresponsive when tak...

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https://hg.mozilla.org/integration/gaia-central/rev/d1a18329c514
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: [Bug 1041811] [B2G][Camera] The "Select" button is unresponsive when taking a picture and trying to set it as the wallpaper
Bumping manifests a=b2g-bump