upgrade dnf

Author: bmastbergen

.github/workflows/build-check_x86_64.yml

@@ -20,6 +20,7 @@ jobs:
       - name: Get kernel src rpm
         run: |
           dnf upgrade dnf -y
+          dnf install dnf-command(download) -y
           dnf download --source kernel
           ls *.src.rpm
       - name: Install tools and Libraries