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

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https://hg.mozilla.org/integration/gaia-central/rev/c34f33156ac6
Author: Sherman Chen <shamenchens@users.noreply.github.com>
Desc: Merge pull request #24662 from shamenchens/Bug1070865-PopupWindowActivity-2

Bug 1070865 - Fix incorrect resize within popup window, r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/1e7fb595e69d
Author: Sherman Chen <shamen.chens@gmail.com>
Desc: Bug 1070865 - Fix incorrect resize within popup window
Bumping manifests a=b2g-bump