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

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https://hg.mozilla.org/integration/gaia-central/rev/459483bc88dc
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #32014 from justindarc/bug1207736

Bug 1207736 - [Music][NGA] Thumbnails missing for list views

========

https://hg.mozilla.org/integration/gaia-central/rev/9a67c8818363
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1207736 - [Music][NGA] Thumbnails missing for list views

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "39b14276c01c127da9f63e9d69acc9abf50ce133", 
+        "git_revision": "165a95e25c03c342f1a134ec0afcee264924ec58", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "9ee9f57ba6411f8b041ebb2fe80ed70b5f23bc2c", 
+    "revision": "459483bc88dcdd6440018b34019626412d8253c2", 
     "repo_path": "integration/gaia-central"
 }