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

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https://hg.mozilla.org/integration/gaia-central/rev/1e2030479d4b
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Merge pull request #19275 from Rik/hide-toolbar-1004710

Bug 1004710 - Totally hide the toolbar when .hide-toolbar is set r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/61a4deb0bdfd
Author: Anthony Ricaud <anthony@ricaud.me>
Desc: Bug 1004710 - Totally hide the toolbar when .hide-toolbar is set
Bumping manifests a=b2g-bump