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

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https://hg.mozilla.org/integration/gaia-central/rev/cd1a16d6212a
Author: Arnau <arnau@arnaumarch.com>
Desc: Merge pull request #19868 from pacorampas/tabular-figure-call-status-bar-1013214

Bug 1013214 - [Dialer] Call status bar - use tabular figure font r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/d81335570df5
Author: Paco Rampas <pacorampas@gmail.com>
Desc: Bug 1013214 - [Dialer] Call status bar - use tabular figure font

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https://hg.mozilla.org/integration/gaia-central/rev/bed9cd3b86cc
Author: Arnau <arnau@arnaumarch.com>
Desc: Merge pull request #19866 from pacorampas/tabular-figure-active-call-1013212

Bug 1013212 - [Dialer] Active call - use tabular figure font r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/de1127195866
Author: Paco Rampas <pacorampas@gmail.com>
Desc: Bug 1013212 - [Dialer] Active call - use tabular figure font

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "b6f067f97d7cb39425377fce4901d2d630dd79e5", 
+    "revision": "cd1a16d6212a1867ecf1d1cfcd62f80abf9ae0b1", 
     "repo_path": "/integration/gaia-central"
 }