gitlab-ci: always provide artifacts

For debugging purposes at least.

.gitlab/artifacts.yml

@@ -11,6 +11,7 @@
 .cmake_build_artifacts:
     artifacts:
         expire_in: 1d
+        when: always
         reports:
             annotations:
                 - build/annotations.json
@@ -39,6 +40,7 @@
 .cmake_coverage_artifacts:
     artifacts:
         expire_in: 1d
+        when: always
         paths:
             # CTest files.
             - build/CTestCustom*.cmake