modernize type hinting

app/main/cli.py

@@ -1,7 +1,6 @@
 from flask import current_app
 from flask_migrate import upgrade
 from pathlib import Path
-from typing import List
 from app import db
 from app.models import (
     Corpus,
@@ -20,7 +19,7 @@ def deploy():
 
     print('Make default directories')
     base_dir = current_app.config['NOPAQUE_DATA_DIR']
-    default_dirs: List[Path] = [
+    default_dirs: list[Path] = [
         base_dir / 'tmp',
         base_dir / 'users'
     ]