CI: generate lockfile (to see if that fixes rustsec/audit-check v2 failures)

Author: chifflier

.github/workflows/security-audit.yml

@@ -10,6 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: generate Cargo.lock
+        run: cargo generate-lockfile
       - uses: rustsec/audit-check@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}