update python version

Author: melonora

.mypy.ini

@@ -1,5 +1,5 @@
 [mypy]
-python_version = 3.9
+python_version = 3.10
 plugins = numpy.typing.mypy_plugin
 
 ignore_errors = False

pyproject.toml

@@ -10,7 +10,7 @@ dynamic= [
 ]
 description = "SpatialData IO for common techs"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = {file = "LICENSE"}
 authors = [
     {name = "scverse"},
@@ -83,7 +83,7 @@ skip_glob = ["docs/*"]
 
 [tool.black]
 line-length = 120
-target-version = ['py39']
+target-version = ['py310']
 include = '\.pyi?$'
 exclude = '''
 (