Fix: Update lightgbm dependency to version 4.6.0 in development requirements

Author: SvenKlaassen

pyproject.toml

@@ -46,7 +46,7 @@ dev = [
     "pytest>=8.3.0",
     "pytest-cov>=6.0.0",
     "xgboost>=2.1.0",
-    "lightgbm>=4.5.0",
+    "lightgbm>=4.6.0",
     "black>=25.1.0",
     "ruff>=0.11.1",
     "pre-commit>=4.2.0",