feat: default to 2026

Author: dzhang32

cookiecutter.json

@@ -5,7 +5,7 @@
     "version": "0.1.0",
     "description": "What's the main goal of this package?",
     "python_version": "3.13",
-    "year": "2025",
+    "year": "2026",
     "include_cli": "y",
     "include_docs": "y",
     "include_pypi": "y"