📝 Update changelog

Author: ystade

CHANGELOG.md

@@ -15,6 +15,7 @@ This project adheres to [Semantic Versioning], with the exception that minor rel
 
 ### Changed
 
+- 🎨 Extract the singleton handling of QDMI devices and make it thread-safe ([#1347]) ([**@ystade**])
 - 👷 Use `munich-quantum-software/setup-mlir` to set up MLIR ([#1294]) ([**@denialhaag**])
 - ♻️ Preserve tuple structure and improve site type clarity of the MQT NA Default QDMI Device ([#1299]) ([**@marcelwa**])
 - ♻️ Move DD package evaluation module to standalone script ([#1327]) ([**@burgholzer**])
@@ -257,6 +258,7 @@ _📚 Refer to the [GitHub Release Notes](https://github.com/munich-quantum-tool
 
 <!-- PR links -->
 
+[#1347]: https://github.com/munich-quantum-toolkit/core/pull/1347
 [#1336]: https://github.com/munich-quantum-toolkit/core/pull/1336
 [#1327]: https://github.com/munich-quantum-toolkit/core/pull/1327
 [#1310]: https://github.com/munich-quantum-toolkit/core/pull/1310