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

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https://hg.mozilla.org/integration/gaia-central/rev/ae119b8068fc
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #30159 from KevinGrandon/bug_1166859_communications_string_includes

Bug 1166859 - [Communications] Convert string.contains to string.includes

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https://hg.mozilla.org/integration/gaia-central/rev/31a2034d9df8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1166859 - [Communications] Convert string.contains to string.includes

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "99711e1fb0561d1413befed10d2eb87ce79e6c4f", 
+        "git_revision": "54d1324b487f0433cd6b8ce49dc0c7b14ed41155", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "a61d3e18830ebee067281a59de4fa43a6240e6dd", 
+    "revision": "ae119b8068fcb7dbfa170774713b088a9f6de815", 
     "repo_path": "integration/gaia-central"
 }