ci: Use JUnit XML file in dashboard

Now that we have junit.xml files in dEQP jobs, use them as report
artifacts.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>

.gitlab-ci.yml

@@ -984,6 +984,8 @@ meson-mingw32-x86_64:
     name: "mesa_${CI_JOB_NAME}"
     paths:
       - results/
+    reports:
+      junit: results/junit.xml
 
 .use-x86_test-gl:
   extends:
@@ -1272,9 +1274,6 @@ arm64_a630_traces:
     # missing.
     MESA_GLSL_VERSION_OVERRIDE: "460"
     MESA_GL_VERSION_OVERRIDE: "4.6"
-  artifacts:
-    reports:
-      junit: results/junit.xml
 
 arm64_a630_gl:
   extends: arm64_a630_gles2
@@ -1459,9 +1458,6 @@ radv-fossils:
       - traces-db/
   variables:
     TRACIE_UPLOAD_TO_MINIO: 1
-  artifacts:
-    reports:
-      junit: results/junit.xml
 
 .traces-test-gl:
   extends: