Change PyPI version badge image source

Updated PyPI version badge to use a different image source.

Author: atasoglu

README.md

@@ -1,6 +1,6 @@
 # sqlite-vec-client
 
-[![PyPI version](https://badge.fury.io/py/sqlite-vec-client.svg)](https://badge.fury.io/py/sqlite-vec-client)
+[![PyPI version](https://img.shields.io/pypi/v/sqlite-vec-client)](https://pypi.org/project/sqlite-vec-client/)
 [![Python 3.9+](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Code style: ruff](https://img.shields.io/badge/code%20style-ruff-000000.svg)](https://github.com/astral-sh/ruff)