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

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https://hg.mozilla.org/integration/gaia-central/rev/bcc6d931a7df
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24627 from KevinGrandon/reland_bug_1071445

Bug 1071445 - [Settings]Cap letter for titles on panels based on new Building Blocks

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https://hg.mozilla.org/integration/gaia-central/rev/e91157bff2f5
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1071445 - Follow-up, update marionette test values r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/9f5a7417f45b
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1071445 - [Settings]Cap letter for titles on panels based on new Building Blocks

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https://hg.mozilla.org/integration/gaia-central/rev/70bd39380d14
Author: Jeff Muizelaar <jmuizelaar@mozilla.com>
Desc: Bug 1042241 - Avoid encoding/decoding clip canvas r=kgrandon

We can just paint the one canvas to the other directly. This
avoids the png encoding/decoding time and will reduce peak memory.
Bumping manifests a=b2g-bump