Fix version of avh-fvp to 11.30.29

avh-fvp 11.31.28 seems to have an issue with python

Author: RobertRostohar

vcpkg-configuration.json

@@ -11,6 +11,6 @@
         "arm:tools/kitware/cmake": "^3.31.5",
         "arm:tools/ninja-build/ninja": "^1.13.2",
         "arm:compilers/arm/armclang": "^6.24.0",
-        "arm:models/arm/avh-fvp": "^11.31.28"
+        "arm:models/arm/avh-fvp": "11.30.29"
     }
 }