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

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https://hg.mozilla.org/integration/gaia-central/rev/d58735d54794
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #26185 from huchengtw-moz/bug-1093530-transparent-inline-activity

Bug 1093530 - [Stingray][System] let inline-activity to have transparent..., r=rexboy

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https://hg.mozilla.org/integration/gaia-central/rev/2b7a0fa8ffbc
Author: John Hu <johu@mozilla.com>
Desc: Bug 1093530 - [Stingray][System] let inline-activity to have transparent background
Bumping manifests a=b2g-bump