fix: print current and updated version correctly

The issue appears in case if versions ar the same (e.g. rebuild); in
this case printer doesn't increment version as builder does.

Also util has been renamed to utils, keeping backward compatibiltiy

docs/ahriman.models.rst

@@ -68,6 +68,14 @@ ahriman.models.dependencies module
    :no-undoc-members:
    :show-inheritance:
 
+ahriman.models.filesystem\_package module
+-----------------------------------------
+
+.. automodule:: ahriman.models.filesystem_package
+   :members:
+   :no-undoc-members:
+   :show-inheritance:
+
 ahriman.models.internal\_status module
 --------------------------------------