Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/6530db5ce829
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Revert "Merge pull request #32392 from mikehenrty/bug-1213244-remove-doorhanger"

This reverts commit 6140a8431781f0457a7de9471ea1db56b7bcab4e, reversing
changes made to c350ccbd62174713ade160287ca347191e30f9d9.

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https://hg.mozilla.org/integration/gaia-central/rev/3a45f65bc0b9
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #32392 from mikehenrty/bug-1213244-remove-doorhanger

Bug 1213244 - Disable pinning-the-web doorhanger

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https://hg.mozilla.org/integration/gaia-central/rev/d51f50464f1e
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1213244 - Disable pinning-the-web doorhanger

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https://hg.mozilla.org/integration/gaia-central/rev/0f330234edea
Author: No-Jun Park <npark@mozilla.com>
Desc: Merge pull request #32378 from npark-mozilla/really_clean_1213301

Bug 1213301 - Convert imagecompare tests for music-nga app

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https://hg.mozilla.org/integration/gaia-central/rev/e5f5b00ffc23
Author: No-Jun Park <npark@mozilla.com>
Desc: Bug 1213301 - Convert imagecompare tests for music-nga app

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "dad4a16195d6e737c1f44c69b969ad976ed27fd6", 
+        "git_revision": "caec861abcd8f7107a585414ae7a508f9a909d14", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "654e554bc6983103f0b7ea45c8f4cf68c2cd4677", 
+    "revision": "6530db5ce82924dc218dffbcb1bd133c82df4f4d", 
     "repo_path": "integration/gaia-central"
 }