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

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https://hg.mozilla.org/integration/gaia-central/rev/0850ede1922f
Author: Martijn <martijn.martijn@gmail.com>
Desc: Merge pull request #31787 from mwargers/1203269

Bug 1203269 - Workaround fix for failure in test_lockscreen_unlock_to_homescreen_with_passcode.py

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https://hg.mozilla.org/integration/gaia-central/rev/cc34ae8525d7
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1203269 - Workaround fix for failure in test_lockscreen_unlock_to_homescreen_with_passcode.py

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https://hg.mozilla.org/integration/gaia-central/rev/a094c4b7caee
Author: Martijn <martijn.martijn@gmail.com>
Desc: Merge pull request #31790 from mwargers/1203257

Bug 1203257 - Fix failure in test_homescreen_launch_app.py

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https://hg.mozilla.org/integration/gaia-central/rev/ce85a5a6fc97
Author: Martijn Wargers <mwargers@mozilla.com>
Desc: Bug 1203257 - Fix failure in test_homescreen_launch_app.py

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "7939280f937e742043e5049e8cc7c566469d86fa", 
+        "git_revision": "2bd8d1dac1311a9854b75b8ab12f8ada055dce1a", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "9f5c0b5ff02a38cb08684b8c4a7a405fbe96b583", 
+    "revision": "0850ede1922fc2fcb640f1c4940ee312648dde23", 
     "repo_path": "integration/gaia-central"
 }