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

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https://hg.mozilla.org/integration/gaia-central/rev/f0cd688d1cde
Author: Luke Chang <lchang@mozilla.com>
Desc: Merge pull request #25522 from luke-chang/1083053_auto_close_screenshot_preview

Bug 1083053 - [Midori] The screenshot preview window still overlays an app when switching apps, r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/2c1dd3e444f7
Author: Luke Chang <lchang@mozilla.com>
Desc: Bug 1083053 - [Midori] The screenshot preview window still overlays an app when switching apps
Bumping manifests a=b2g-bump