meson: invalid keyword argument dependencies

Fixes: e4cc52c0 (vulkan: Add common extension tables)
Reviewed-by: Dylan Baker <dylan.c.baker@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8821>

src/vulkan/util/meson.build

@@ -80,7 +80,7 @@ vk_extensions = custom_target(
     prog_python, '@INPUT0@', '--xml', '@INPUT1@',
     '--out-c', '@OUTPUT0@', '--out-h', '@OUTPUT1@'
   ],
-  dependencies : ['vk_extensions.py'],
+  depend_files : files('vk_extensions.py'),
 )
 
 libvulkan_util = static_library(