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

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https://hg.mozilla.org/integration/gaia-central/rev/0d76d8af246b
Author: Ian Liu <iliu@mozilla.com>
Desc: Merge pull request #19526 from ian-liu/bluetooth/bug996272_revise_incorrect_using_mozl10n_api_in_bluetooth_app

Bug 996272 - Clean up mozL10n API use in bluetooth, r=@crh0716

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https://hg.mozilla.org/integration/gaia-central/rev/294f43e95bfb
Author: ian-liu <iliu@mozilla.com>
Desc: Bug 996272 - Clean up mozL10n API use in bluetooth
Bumping manifests a=b2g-bump