🔧 Add REUSE CI check

.github/workflows/checks.yml

@@ -0,0 +1,17 @@
+# SPDX-FileCopyrightText: Simon Schneegans <code@simonschneegans.de>
+# SPDX-License-Identifier: CC0-1.0
+
+name: Push
+
+on:
+  push:
+    branches:
+      - "**"
+
+  reuse:
+    name: Check REUSE
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: REUSE Compliance Check
+        uses: fsfe/reuse-action@v1