Fix isort import formatting

- Add blank line separator in lazy.py imports
- Move stdlib imports before Salt imports in test_dunder.py

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: dwoz

salt/loader/lazy.py

@@ -29,6 +29,7 @@
 import salt.utils.event
 import salt.utils.files
 import salt.utils.lazy
+
 # Lazy import: salt.utils.optsdict imported only when creating loaders
 import salt.utils.platform
 import salt.utils.stringutils

tests/pytests/functional/loader/test_dunder.py

@@ -1,8 +1,9 @@
+from collections.abc import MutableMapping
+
 import salt.loader.context
 import salt.loader.lazy
 import salt.utils.files
 import tests.support.helpers
-from collections.abc import MutableMapping
 
 
 def test_opts_dunder_opts_without_import(tmp_path):