pixi.toml : add nanobind dependency

Author: ManifoldFR

pixi.toml

@@ -14,6 +14,7 @@ cxx-compiler = ">=1.7.0"
 ninja = ">=1.11"
 pkg-config = ">=0.29.2"
 git = ">=2.47.0"
+nanobind = ">=2.5.0"
 
 [dependencies]
 libboost-devel = ">=1.80.0"