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

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https://hg.mozilla.org/integration/gaia-central/rev/9ec69eadd70e
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #24226 from etiennesegonzac/bug-1069997

Bug 1069997 - Implement the progress to spec for the updates notifications and prevent a constant restlye r=21

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https://hg.mozilla.org/integration/gaia-central/rev/245af397a06a
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1069997 - Implement the progress to spec for the updates notifications and prevent a constant restyle.

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https://hg.mozilla.org/integration/gaia-central/rev/384537c98019
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #24288 from jmcanterafonseca/sim_import_label

Bug 1070914 - [Contacts] [Settings] SIM Import label has disappeared

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https://hg.mozilla.org/integration/gaia-central/rev/8b6ebfa367ac
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1070914 - [Contacts] [Settings] SIM Import label has disappeared
Bumping manifests a=b2g-bump