Bump fsfe/reuse-action from 4 to 5 (#260)

Author: dependabot[bot]

.github/workflows/main.yml

@@ -84,7 +84,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: reuse lint
-        uses: fsfe/reuse-action@v4
+        uses: fsfe/reuse-action@v5
 
   fossa-check:
     runs-on: ubuntu-latest