Add reuse-lint job

Author: ufechner7

.github/workflows/CI.yml

@@ -11,6 +11,13 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 jobs:
+  reuse-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run REUSE lint
+        run: |
+          docker run --rm --volume ${{ github.workspace }}:/data fsfe/reuse lint
   test:
     name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}