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

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https://hg.mozilla.org/integration/gaia-central/rev/c13f2800a41d
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #24325 from gasolin/issue-1071445

Bug 1071445 - [Settings]Cap letter for titles on panels based on new building blocks, r=jenny

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https://hg.mozilla.org/integration/gaia-central/rev/e632cd405923
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1071445 - [Settings]Cap letter for titles on panels based on new Building Blocks
Bumping manifests a=b2g-bump