[libglnx/wip/reuse] CI: Run `reuse lint` across the tree

[Simon McVittie <smcv src gnome org>]

commit f30fdcfc2e723feff008d003c2df49ce81e296a4
Author: Simon McVittie <smcv debian org>
Date:   Fri Jul 2 13:32:45 2021 +0100

    CI: Run `reuse lint` across the tree
    
    Signed-off-by: Simon McVittie <smcv debian org>

 .gitlab-ci.yml | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9fa25bc..38212e0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,3 +23,12 @@ build:
     name: "libglnx-${CI_COMMIT_REF_NAME}-${CI_JOB_NAME}"
     paths:
       - "${CI_PROJECT_DIR}/_build/meson-logs"
+
+reuse:
+  stage: build
+  image:
+    name: fsfe/reuse:latest
+    entrypoint: [""]
+  before_script: []
+  script:
+    - reuse lint