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

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https://hg.mozilla.org/integration/gaia-central/rev/3ae4b06c6b01
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Merge pull request #23111 from eeejay/bug-1056364

Bug 1056364 - Check lockscreen state before hiding windows on visible-au... r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/829232e70b57
Author: Eitan Isaacson <eitan@monotonous.org>
Desc: Bug 1056364 - Check lockscreen state before hiding windows on visible-audio-channel-changed.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "19ff5c952f8b3e1543323c55e94b14104f6a31ef", 
+    "revision": "3ae4b06c6b013f2ec45b6d7e7f12f27fbc078a3d", 
     "repo_path": "/integration/gaia-central"
 }