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

========

https://hg.mozilla.org/integration/gaia-central/rev/a3e2bbd23c8d
Author: Jan Keromnes <janx@linux.com>
Desc: Merge pull request #18278 from jankeromnes/interruptible

Bug 995946 - Prevent transient breakage in the ReflowHelper due to a Developer HUD udpate. r=etienne

========

https://hg.mozilla.org/integration/gaia-central/rev/55fcdc15287e
Author: Jan Keromnes <janx@linux.com>
Desc: Bug 995946 - Prevent transient breakage in the ReflowHelper due to a Developer HUD udpate. r=etienne

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "139421932b17e359734e9d086f2c2eec10055454", 
+    "revision": "a3e2bbd23c8d5410efb19cd5e387a69d822cc048", 
     "repo_path": "/integration/gaia-central"
 }