Rename and update paths for firewalld test files.

Moved firewalld-related files out of the tests directory for better organization. Updated file paths in the Dockerfile accordingly to ensure functionality remains intact.

.github/workflows/test-firewalld.yml

@@ -18,7 +18,7 @@ jobs:
 
     - name: Build Docker image
       run: |
-        docker build -t my-firewalld-image -f tests/firewalld.Dockerfile .
+        docker build -t my-firewalld-image -f firewalld.Dockerfile .
 
     - name: Run tests
       run: |