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

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https://hg.mozilla.org/integration/gaia-central/rev/a7c41b931314
Author: Carsten Book <tomcat@mozilla.com>
Desc: Merge pull request #22040 from guilherme-pg/bug1041613-timeout-requests

Bug 1041613 - Timeout server requests in Find My Device. r=gerard-majax

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https://hg.mozilla.org/integration/gaia-central/rev/3978d50282c3
Author: Guilherme Goncalves <guilherme.p.gonc@gmail.com>
Desc: Bug 1041613 - Timeout server requests in Find My Device.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "6069d71a0033fa47405a2e616f26eb2002eb8842", 
+    "revision": "a7c41b931314de0ef4b67b84579a72e1772611c8", 
     "repo_path": "/integration/gaia-central"
 }