fix: remove unnecessary migration for mise conf.d file

The migration was removing .config/mise/conf.d/10-python.toml which is actually needed for the project setup. This file contains important Python configuration for mise that should be preserved during template updates.

Author: liblaf

copier.yaml

@@ -20,7 +20,6 @@ _migrations: &migrations
   - rm --force --verbose '.config/copier/python.just'
   - rm --force --verbose '.config/direnv/10-python.sh'
   - rm --force --verbose '.config/mise/conf.d/00-python.toml'
-  - rm --force --verbose '.config/mise/conf.d/10-python.toml'
   - rm --force --verbose '.github/copier/.copier-answers.python.yaml'
   - rm --force --verbose '.github/copier/mkdocs.yaml'
   - rm --force --verbose '.github/linters/.ruff.toml'