Use uv as a venv wrapper

sort_certificate.py

@@ -1,4 +1,12 @@
-#! /usr/bin/env python3
+#! /usr/bin/env -S uv run --script
+# /// script
+# requires-python = ">=3.11"
+# dependencies = [
+#     "certifi",
+#     "cryptography",
+#     "pyopenssl",
+# ]
+# ///
 '''
 Sort X509/private key material
 '''