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

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https://hg.mozilla.org/integration/gaia-central/rev/ac366b1ee189
Author: viorelaioia <viorela.ioia@softvision.ro>
Desc: Merge pull request #26655 from viorelaioia/1097040

Bug 1097040 - Write a test to verify that the SMS auto-save draft when message app terminated

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https://hg.mozilla.org/integration/gaia-central/rev/4951a090fc70
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1097040 - Write a test to verify that the SMS auto-save draft when message app terminated
Bumping manifests a=b2g-bump