ALBS-837: Improve building artifacts generator: it should generate modules defaults

- Use remote modules defaults

pungi-build.conf.j2

@@ -17,7 +17,12 @@ comps_file = {
 
 link_type = 'hardlink'
 
-module_defaults_dir =  'koji/module_defaults'
+module_defaults_dir =  {
+    "scm": "git",
+    "repo": "https://git.almalinux.org/almalinux/pungi-almalinux.git",
+    "branch": "a{{ distribution_major_version }}.{{ distribution_minor_version }}{{ '-beta' if beta_suffix is defined and beta_suffix else '' }}",
+    "dir": "{{ arch }}/modules_defaults",
+}
 
 variants_file = {
     "scm": "git",