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

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https://hg.mozilla.org/integration/gaia-central/rev/30aac878cf3d
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Merge pull request #20574 from Rik/suggestion-slot-2-1022194

Bug 1022194 - Taping the suggestion bar with only one SIM in slot 2 does... r=drs

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https://hg.mozilla.org/integration/gaia-central/rev/790793c13fce
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Bug 1022194 - Taping the suggestion bar with only one SIM in slot 2 doesn't work
Bumping manifests a=b2g-bump