build: Update known-good for 1.1.115 header

Change-Id: I84ba49eed31acddd66cf6719dbbbe562325d95a9
diff --git a/scripts/known_good.json b/scripts/known_good.json
index 5f18206..64d3840 100644
--- a/scripts/known_good.json
+++ b/scripts/known_good.json
@@ -6,7 +6,7 @@
       "sub_dir" : "Vulkan-Headers",
       "build_dir" : "Vulkan-Headers/build",
       "install_dir" : "Vulkan-Headers/build/install",
-      "commit" : "v1.1.114"
+      "commit" : "v1.1.115"
     }
   ],
   "install_names" : {