ci: disable sporadically failing test

spec@arb_timer_query@timestamp-get seems to fail on D3D12 / Windows
every now and then. Until that's been figured out, let's disable the
test in CI.

Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8978>

.gitlab-ci.yml

@@ -893,7 +893,7 @@ test-d3d12-windows:
     GIT_STRATEGY: none # testing doesn't build anything from source
     GALLIUM_DRIVER: d3d12
     PIGLIT_PROFILE: quick_gl
-    PIGLIT_OPTIONS: -x nv_copy_depth_to_color -x repeat-wait
+    PIGLIT_OPTIONS: -x nv_copy_depth_to_color -x repeat-wait -x arb_timer_query@timestamp-get
   script:
     - . _install/piglit_run.ps1
   artifacts:

.gitlab-ci/windows/quick_gl.txt

@@ -4742,7 +4742,7 @@ wgl/wgl-sanity: skip
 summary:
        name:  results
        ----  --------
-       pass:    13254
+       pass:    13253
        fail:      539
       crash:       68
        skip:     4114
@@ -4754,4 +4754,4 @@ summary:
     changes:        0
       fixes:        0
 regressions:        0
-      total:    17995
+      total:    17994