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

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https://hg.mozilla.org/integration/gaia-central/rev/61480b16c77e
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #18639 from crdlc/bug-1000454

Bug 1000454 - [B2G][1.4][Gaia]: The timestamp for a file downloaded a we...

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https://hg.mozilla.org/integration/gaia-central/rev/2ab8ec333ce1
Author: crdlc <crdlc@tid.es>
Desc: Bug 1000454 - [B2G][1.4][Gaia]: The timestamp for a file downloaded a week ago is missing on all languages

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "06ee4e4f400537a86bf21ac8db474dd1f56c1d26", 
+    "revision": "61480b16c77ed7e8d01d2ef114adef754a4ea75c", 
     "repo_path": "/integration/gaia-central"
 }