python: run isort, add shebangs on all files

list_builder.py

@@ -1,20 +1,22 @@
 #!/usr/bin/python3
 
 import copy
-import sys
+import json
 import os
 import re
-import json
-from shutil import which
-import toml
 import subprocess
+import sys
 import time
-from typing import TextIO, Generator, Any
+from collections import OrderedDict
 from pathlib import Path
+from shutil import which
+from typing import Any, Generator, TextIO
+
+import toml
 from git import Repo
 
-from collections import OrderedDict
-from tools.packaging_v2.convert_v1_manifest_to_v2_for_catalog import convert_v1_manifest_to_v2_for_catalog
+from tools.packaging_v2.convert_v1_manifest_to_v2_for_catalog import \
+    convert_v1_manifest_to_v2_for_catalog
 
 now = time.time()