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

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https://hg.mozilla.org/integration/gaia-central/rev/701024d93532
Author: Aleh Zasypkin <aleh.zasypkin@gmail.com>
Desc: Merge pull request #24378 from kumarrishav/Bug-1040875

Bug 1040875 - Warning about failure to parse CSS value in delete messages view. r=azasypkin

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https://hg.mozilla.org/integration/gaia-central/rev/84164560873c
Author: kumarrishav <rishav006@gmail.com>
Desc: Bug 1040875 - Warning about failure to parse CSS value in delete messages view. r=azasypkin
Bumping manifests a=b2g-bump