fix(template): use python shebang for init generator

Replace the `uv run` shebang with `python` so the generated script
can run in environments that do not invoke it through uv.

Author: liblaf

template/.config/copier/mise-tasks/gen/init.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env -S uv run
+#!/usr/bin/env python
 import argparse
 import ast
 import os