Update badge link: stages → maturity in README.md

Signed-off-by: Juan Estrella <juan.estrella@finos.org>

Author: TheJuanAndOnly99

README.md

@@ -1,4 +1,4 @@
-[![FINOS - Active](https://cdn.jsdelivr.net/gh/finos/contrib-toolbox@master/images/badge-active.svg)](https://community.finos.org/docs/governance/Software-Projects/stages/active)
+[![FINOS - Graduated](https://cdn.jsdelivr.net/gh/finos/contrib-toolbox@master/images/badge-graduated.svg)](https://community.finos.org/docs/governance/lifecycle-stages/graduated)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Python](https://img.shields.io/badge/python-3.9%20%7C%203.10%20%7C%203.11%20%7C%203.12%20%7C%203.13-blue)](https://www.python.org/downloads/)
 [![Pypi](https://img.shields.io/pypi/v/symphony-bdk-python)](https://pypi.org/project/symphony-bdk-python/)
@@ -98,4 +98,4 @@ Copyright 2021 Symphony LLC
 
 Distributed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0).
 
-SPDX-License-Identifier: [Apache-2.0](https://spdx.org/licenses/Apache-2.0).
+SPDX-License-Identifier: [Apache-2.0](https://spdx.org/licenses/Apache-2.0).