Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/d61deb12f852
Author: Jim Porter <jporter@mozilla.com>
Desc: Merge pull request #32215 from jimporter/music-sort

Bug 1209135 - [Music][NGA] Switch sorting logic to be locale-aware

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https://hg.mozilla.org/integration/gaia-central/rev/cbc1d8e62598
Author: Jim <jporter@mozilla.com>
Desc: Bug 1209135 - [Music][NGA] Switch sorting logic to be locale-aware

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https://hg.mozilla.org/integration/gaia-central/rev/9f8380fda3ec
Author: Fabrice Desré <fabrice@desre.org>
Desc: Merge pull request #32254 from syg/unit-fixes

Bug 589199 - Fix Gaia unit tests. (r=me)

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https://hg.mozilla.org/integration/gaia-central/rev/5bd39a48e320
Author: Shu-yu Guo <shu@rfrn.org>
Desc: Bug 589199 - Fix Gaia unit tests. (r=me)

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "f78efe5c801c26b11dd96f0a190fa8b644d7e5de", 
+        "git_revision": "2a5f1f2819c05bb3d8e5a732d18be1739f66bc76", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "c9b06cb24b5de5028cde1aaf36cd25d80a8c0c8a", 
+    "revision": "d61deb12f8524e9be07e6c44d4080ed40994b643", 
     "repo_path": "integration/gaia-central"
 }