Update autoconf-check.yml

Author: vmcj

.github/workflows/autoconf-check.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Create the distribution tarball
         run: |
           make dist
-          make distclean
+          make --debug=b distclean
           cd ..
           mv domjudge release
           mkdir domjudge #Workdir for next steps