build: Update to header 1.3.259

- Update known-good
- Generate source (no change)
diff --git a/scripts/known_good.json b/scripts/known_good.json
index f641ae3..04883f4 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": "v1.3.258"
+            "commit": "v1.3.259"
         },
         {
             "name": "googletest",