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

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https://hg.mozilla.org/integration/gaia-central/rev/fdd04a88091e
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Merge pull request #25169 from dmarcos/bug1081270

Bug 1081270 - [Flame][Camera] Face tracking circle stops tracking once r...

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https://hg.mozilla.org/integration/gaia-central/rev/4a4229468094
Author: Diego Marcos <diego.marcos@gmail.com>
Desc: Bug 1081270 - [Flame][Camera] Face tracking circle stops tracking once recording starts

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "3e480f978fe1e8d6617273e83106cfaeef909aa6", 
+    "revision": "fdd04a88091e6bad0573a0df539be4f94e85f640", 
     "repo_path": "/integration/gaia-central"
 }