Update version and Python dependency in pyproject.toml

Author: petri

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "colourswatch"
-version = "2024.2"
+version = "2026.1"
 license = "mit"
 description = "Use this module to read, and write to a number of colour palette file formats"
 authors = ["FredHappyface"]
@@ -21,7 +21,7 @@ documentation = "https://github.com/FHPythonUtils/ColourSwatch/blob/master/READM
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = ">=3.9,<4.0"
+python = ">=3.10,<4.0"
 colormath = "<4,>=3.0.0"
 PyYAML = "<7,>=6.0.1"
 defusedxml = "<2,>=0.7.1"
@@ -79,10 +79,10 @@ venv = ".venv"
 legacy_tox_ini = """
 [tox]
 env_list =
+    py313
+    py312
 	py311
 	py310
-	py39
-	py38
 
 [testenv]
 deps = pytest