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

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https://hg.mozilla.org/integration/gaia-2_1/rev/2bae26056eb5
Author: chirarobert <robert.chira@softvision.ro>
Desc: Merge pull request #25662 from viorelaioia/bug_1083217_v2.1

Bug 1083217 - Add a test to play a song in artist list view

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https://hg.mozilla.org/integration/gaia-2_1/rev/2a000d168847
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1083217 - Add a test to play a song in artist list view
Bumping manifests a=b2g-bump