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

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https://hg.mozilla.org/integration/gaia-central/rev/0dfc775f468e
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #33778 from jrburke/bug1234732-email-cleanup-header-cursor

Bug 1234732 - [email] HeaderCursor seems to be insantiated multiple times for message_list somehow r=asuth

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https://hg.mozilla.org/integration/gaia-central/rev/a1bc41f092a3
Author: jrburke <jrburke@gmail.com>
Desc: Bug 1234732 - [email] HeaderCursor seems to be insantiated multiple times for message_list somehow

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https://hg.mozilla.org/integration/gaia-central/rev/3a32ccd17aad
Author: Hubert Figuière <hub@figuiere.net>
Desc: Merge pull request #33782 from hfiguiere/bug1235800-metadata-test-orange

Bug 1235800 - metadata test orange fix r=justindarc

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https://hg.mozilla.org/integration/gaia-central/rev/fb082c9523ce
Author: Hubert Figuière <hub@figuiere.net>
Desc: Bug 1235800 - Make sure to wait on the list to be ready.

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "4cdac959cf4838dc5ea14f75b16d983182f7a02a", 
+        "git_revision": "664e9c376606b9633d20e24edd5b6fa0ab9edadf", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "7b5f30dfbd7cdb8cf94cafbadd44f028ab79d734", 
+    "revision": "0dfc775f468eaa8550e5d94a58315de39654aad5", 
     "repo_path": "integration/gaia-central"
 }