d3d12/dzn/spirv2dxil: Require version library

Fixes: b8328c9 ("microsoft/compiler: Blacklist DXIL validator 1.6 from 20348 SDK")

Closes: #6952

Closes: #6959

v2: Always lookup version library on Windows

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17837>
(cherry picked from commit ec46a85c4f)

.pick_status.json

@@ -211,7 +211,7 @@
         "description": "d3d12/dzn/spirv2dxil: Require version library",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "b8328c9664ed3f11924be37a243464236812a3a2"
     },

meson.build

@@ -1884,7 +1884,7 @@ endif
 # Be explicit about only using this lib on Windows, to avoid picking
 # up random libs with the generic name 'libversion'
 dep_version = null_dep
-if with_opencl_spirv and host_machine.system() == 'windows'
+if host_machine.system() == 'windows'
   dep_version = cpp.find_library('version')
 endif