[App] Change overwrite to True (#16009)

Co-authored-by: thomas <[email protected]>
(cherry picked from commit 085c6b3)

Author: 2 people

src/lightning_app/cli/lightning_cli.py

@@ -233,7 +233,7 @@ def _run_app(
 
     if not os.path.exists(file):
         original_file = file
-        file = cmd_install.gallery_apps_and_components(file, True, "latest", overwrite=False)  # type: ignore[assignment]  # noqa E501
+        file = cmd_install.gallery_apps_and_components(file, True, "latest", overwrite=True)  # type: ignore[assignment]  # noqa E501
         if file is None:
             click.echo(f"The provided entrypoint `{original_file}` doesn't exist.")
             sys.exit(1)