Revert "test: validate testing by removing extra_artifacts input"

This reverts commit 7c920727.

tests/integration-tests/ExtraArtifactsAreIncluded.gitlab-ci.yml

@@ -10,6 +10,8 @@ include:
       opentofu_version: $OPENTOFU_VERSION
       root_dir: $TEST_GITLAB_TOFU_ROOT_DIR
       state_name: $TEST_GITLAB_TOFU_STATE_NAME
+      extra_artifacts:
+        - $ARTIFACT_FILE_NAME
 
   # For CI Terraform state cleanup
   - component: $CI_SERVER_FQDN/$CI_PROJECT_PATH/delete-state@$CI_COMMIT_SHA