Update pyproject.toml structure, bump up package versions and the supported Python version to 3.13, simplify dependency-groups, update deprecated license field format

Author: Ickerday

pyproject.toml

@@ -11,14 +11,12 @@ name = "splunk-sdk"
 dynamic = ["version"]
 description = "Splunk Software Development Kit for Python"
 readme = "README.md"
-requires-python = ">=3.7"
-license = { text = "Apache-2.0" }
+requires-python = ">=3.13.0, <3.14"
+license = "Apache-2.0"
 authors = [{ name = "Splunk, Inc.", email = "devinfo@splunk.com" }]
 keywords = ["splunk", "sdk"]
 classifiers = [
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.13",
   "Development Status :: 6 - Mature",
@@ -29,21 +27,23 @@ classifiers = [
   "Topic :: Software Development :: Libraries :: Application Frameworks",
 ]
 
-dependencies = ["python-dotenv>=0.21.1"]
-optional-dependencies = { compat = ["six>=1.17.0"] }
+dependencies = ["python-dotenv>=1.2.1"]
 
+# Difference between [optional-dependencies] and [dependency-groups]
+# https://github.com/astral-sh/uv/issues/8981#issuecomment-2466787211
+# Treat the same as NPM's `dependencies`
+[project.optional-dependencies]
+compat = ["six>=1.17.0"]
+
+# Treat the same as NPM's `devDependencies`
 [dependency-groups]
-build = ["build>=1.1.1", "twine>=4.0.2"]
-# Can't pin `sphinx` otherwise installation fails on python>=3.7
-docs = ["sphinx", "jinja2>=3.1.6"]
-lint = ["mypy>=1.4.1", "ruff>=0.13.1"]
-test = ["pytest>=7.4.4", "pytest-cov>=4.1.0"]
-release = [{ include-group = "build" }, { include-group = "docs" }]
+test = ["pytest>=9.0.2", "pytest-cov>=7.0.0", "pytest-asyncio>=1.3.0"]
+lint = ["basedpyright>=1.37.1", "ruff>=0.14.13", "mbake>=1.4.4"]
+release = ["build>=1.4.0", "twine>=6.2.0", "sphinx>=9.1.0", "jinja2>=3.1.6"]
 dev = [
   { include-group = "test" },
   { include-group = "lint" },
-  { include-group = "build" },
-  { include-group = "docs" },
+  { include-group = "release" },
 ]
 
 [build-system]