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

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https://hg.mozilla.org/integration/gaia-central/rev/9088d347fe22
Author: evelynhung <jj.evelyn@gmail.com>
Desc: Merge pull request #32497 from evelynhung/issue-1215465

Bug 1215465 - remove mock video and reuse test-media

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https://hg.mozilla.org/integration/gaia-central/rev/f91d1077e0e0
Author: Evelyn Hung <jj.evelyn@gmail.com>
Desc: Bug 1215465 - remove mock video and reuse test-media

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https://hg.mozilla.org/integration/gaia-central/rev/a2b0c9c0d947
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Merge pull request #32469 from etiennesegonzac/bug-1209536-lingering-attention-screen

Bug 1209536 - Prevent a race when opening the callscreen while the call ends. r=albertopq

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https://hg.mozilla.org/integration/gaia-central/rev/678004b9a0ba
Author: Etienne Segonzac <etienne@segonzac.info>
Desc: Bug 1209536 - Prevent a race when opening the callscreen while the call ends. r=albertopq

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "74a138fd7a0661724da6a33dbfba90141bdecf6a", 
+        "git_revision": "7065d1f0e5a66e7dc11f50783708923af339c240", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "35df9167b725a0dd789334c0df3c47f9cb86193c", 
+    "revision": "9088d347fe22202b4877058476e1da3a51ebc10b", 
     "repo_path": "integration/gaia-central"
 }