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

========

https://hg.mozilla.org/integration/gaia-central/rev/8b7476489ad4
Author: Zibi Braniecki <zbigniew.braniecki@gmail.com>
Desc: Merge pull request #30385 from zbraniecki/1170963-remove-not-used-l10ndate-methods

Bug 1170963: Remove not used functions from l10n_date. r=stas

========

https://hg.mozilla.org/integration/gaia-central/rev/1e1ffd93c52c
Author: Zibi Braniecki <gandalf@mozilla.com>
Desc: Bug 1170963: Remove not used functions from l10n_date

========

https://hg.mozilla.org/integration/gaia-central/rev/1fa59774195d
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #30947 from TheoChevalier/new-gaia-locales

Bug 1183379 - Add Amharic (am), Upper Sorbian (hsb), Lower Sorbian (d…

========

https://hg.mozilla.org/integration/gaia-central/rev/d802e083d4bb
Author: TheoChevalier <theo.chevalier11@gmail.com>
Desc: Bug 1183379 - Add Amharic (am), Upper Sorbian (hsb), Lower Sorbian (dsb), Miahuatlán Zapotec (zam) locales to Gaia on master and 2.2 branches

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "302a448729ff2b336581cf94b66327ea836294c7", 
+        "git_revision": "14e32276025b0310d3e89027320cf4b2a24cedfb", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "6b3d9ecc195e6fac9fd71a17b4a0d5d0fcac9093", 
+    "revision": "8b7476489ad4a91eb41856b43934364fe8ef68be", 
     "repo_path": "integration/gaia-central"
 }