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

========

https://hg.mozilla.org/integration/gaia-central/rev/6452986b4d70
Author: EragonJ (E.J.) <eragonj@eragonj.me>
Desc: Merge pull request #26756 from EragonJ/bug-1103805

Bug 1103805 - [Settings][Dialog] wifi_join_hidden should be shown as a d...

========

https://hg.mozilla.org/integration/gaia-central/rev/16d991a667b5
Author: EragonJ <eragonj@eragonj.me>
Desc: Bug 1103805 - [Settings][Dialog] wifi_join_hidden should be shown as a dialog

========

https://hg.mozilla.org/integration/gaia-central/rev/ab5cc56052f8
Author: Sean Lee <weilonge@gmail.com>
Desc: Merge pull request #26871 from weilonge/seanlee/STK/master/Bug1106450

Bug 1106450 - Fix the issue of multi-sim and missing cell object of connection. r=frsela

========

https://hg.mozilla.org/integration/gaia-central/rev/88ef19118772
Author: Sean Lee <seanlee@Seans-MacBook-Pro.local>
Desc: Bug 1106450
1. Use icc.getConnection to get a connection for multi-sim cases.
2. Send STK_RESULT_PRFRMD_LIMITED_SERVICE when there is no cell object
of connection during handling STK_CMD_PROVIDE_LOCAL_INFO command.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "5942decc9c2d27169eb08723be482ee43f122864", 
+    "revision": "6452986b4d704d2ab0d6e2151f31fd15a1b8d358", 
     "repo_path": "integration/gaia-central"
 }