upgrade plotly to 6.0 (<7.0)

Author: masenf

poetry.lock

@@ -75,7 +75,7 @@ pytest-cov = ">=4.0.0,<7.0"
 ruff = "0.9.10"
 pandas = ">=2.1.1,<3.0"
 pillow = ">=10.0.0,<12.0"
-plotly = ">=5.13.0,<6.0"
+plotly = ">=5.13.0,<7.0"
 asynctest = ">=0.13.0,<1.0"
 pre-commit = ">=3.2.1"
 selenium = ">=4.11.0,<5.0"