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

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https://hg.mozilla.org/integration/gaia-central/rev/98070bfac72f
Author: evelynhung <jj.evelyn@gmail.com>
Desc: Merge pull request #24891 from anefzaoui/issue-994045

Bug 994045 - [settings][rtl] Downloads: Restart button overlays download title/name in rtl/right-to-left languages like Arabic, r=evelyn

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https://hg.mozilla.org/integration/gaia-central/rev/8a0142025796
Author: anefzaoui <nefzaoui.ahmed@hotmail.com>
Desc:  Bug 994045 - [settings][rtl] Downloads: Restart button overlays download title/name in rtl/right-to-left languages like Arabic
Bumping manifests a=b2g-bump