Update required Python version to 3.10

Updated the required Python version from 3.8 to 3.10 and removed support for 3.8 and 3.9.

Author: methane

pyproject.toml

@@ -2,7 +2,7 @@
 name = "mysqlclient"
 description = "Python interface to MySQL"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 authors = [
     {name = "Inada Naoki", email = "songofacandy@gmail.com"}
 ]
@@ -20,8 +20,6 @@ classifiers = [
     "Programming Language :: C",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",