Upgrade minimum prek version to 0.4.0 in templates (#41)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: tsvikas

project_name/pyproject.toml.jinja

@@ -71,7 +71,7 @@ dependencies = [
 dev = [
   ## used in the justfile
   "rust-just ~=1.0",
-  "prek ~=0.3.0",
+  "prek ~=0.4.0",
   "black{% if contains_jupyter_files %}[jupyter]{% endif %} ~=26.1",
   "ruff ~=0.15.0",
   ## can be used for debug