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

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https://hg.mozilla.org/integration/gaia-central/rev/e3c4a8e9415b
Author: EragonJ (E.J.) <eragonj@eragonj.me>
Desc: Merge pull request #27136 from EragonJ/bug-1118095

Bug 1118095 - [Settings][Dialog] In RTL languages, the fading animation ...

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https://hg.mozilla.org/integration/gaia-central/rev/69dd9eb39665
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 1118095 - [Settings][Dialog] In RTL languages, the fading animation of dialog is wrong

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https://hg.mozilla.org/integration/gaia-central/rev/fdaf6e5dc42e
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #27401 from huchengtw-moz/bug-1119762-patch

Bug 1119762 - [stingray] the Landing-App's location.hash are appended ea..., r=johnhu

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https://hg.mozilla.org/integration/gaia-central/rev/4432ca952bd9
Author: John Hu <johu@mozilla.com>
Desc: Bug 1119762 - [stingray] the Landing-App's location.hash are appended each changing visibility.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "03effd58034893d2a12907faa6a8a41d3e923b50", 
+    "revision": "e3c4a8e9415ba170d4bf9994e1ff8c060d9c8531", 
     "repo_path": "integration/gaia-central"
 }