fix(examples): 10 pins compat.vulkan-runtime 2026.09.07

The version compat.vulkan asks for since mcpp-index#351, where a soname
carried by two installed payloads is decided by symbol coverage rather
than by which store path sorts last.

Author: speak-agent

examples/10-vulkan-compute/app/mcpp.toml

@@ -22,7 +22,7 @@ plugins = { version = "0.1.0", features = ["rules-spirv"], host-module = true }
 # below is a payload and the hardware ones are the host's.
 [dependencies.compat]
 vulkan         = "1.4.357.0"
-vulkan-runtime = "2026.09.06"
+vulkan-runtime = "2026.09.07"
 
 # The two payloads this build names rather than discovers: the shader compiler,
 # and a Vulkan driver that is always present because it is the CPU. With