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

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https://hg.mozilla.org/integration/gaia-central/rev/1ad3b701458e
Author: Yuren Ju <yurenju@gmail.com>
Desc: Merge pull request #23123 from yurenju/enhance-build-unit

Bug 1040658 - Add more log for gaia build unit test r=testonly

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https://hg.mozilla.org/integration/gaia-central/rev/8012a40820ef
Author: Yuren Ju <yurenju@gmail.com>
Desc: Bug 1040658 - Add more log for gaia build unit test r=testonly

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "6f1190af1ca6288f67cd37d3c1c6c115419f445e", 
+    "revision": "1ad3b701458ee72e309038868c0c6eb5c557ade9", 
     "repo_path": "/integration/gaia-central"
 }