update duckdb in makefile

Makefile

@@ -71,7 +71,7 @@ lint-and-test-examples:
 	poetry run flake8 --max-line-length=200 docs/examples
 	cd docs/tools && poetry run python prepare_examples_tests.py
 	# install duckdb extension for postgres_to_postgres example
-	cd docs/examples/postgres_to_postgres && wget http://extensions.duckdb.org/v0.10.0/linux_amd64_gcc4/postgres_scanner.duckdb_extension.gz && gunzip ./postgres_scanner.duckdb_extension.gz
+	cd docs/examples/postgres_to_postgres && wget http://extensions.duckdb.org/v0.10.3/linux_amd64_gcc4/postgres_scanner.duckdb_extension.gz && gunzip ./postgres_scanner.duckdb_extension.gz
 	cd docs/examples/postgres_to_postgres && poetry run python ./install_duckdb_extensions.py
 	# run tests
 	cd docs/examples && poetry run pytest