Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-2_0/rev/b2fde65b6d36
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #21214 from RudyLu/music/Bug1032037-disable_playerTest_travis

Bug 1032037 - perma-red on Travis for Music player tests - Playback.
r=dominickuo
a=test-only
(cherry picked from commit ef1599767fb41f9a417a77a56f88c95912687a70)

Conflicts:
	shared/test/integration/travis-manifest.json
Bumping manifests a=b2g-bump