Relax version requirements of py-setuptools and enable build for older versions
of it.

--- pyproject.toml.orig	2025-11-08 12:01:13 UTC
+++ pyproject.toml
@@ -1,14 +1,12 @@ build-backend = "setuptools.build_meta"
 [build-system]
 build-backend = "setuptools.build_meta"
-requires = ["setuptools>=64", "setuptools-scm>=8"]
+requires = ["setuptools", "setuptools-scm>=8"]
 
 [project]
 name = "mkdocs-rss-plugin"
 description = "MkDocs plugin to generate RSS and JSON feeds using Mkdocs site configuration, git log and Mkdocs pages'meta."
 dynamic = ["version"]
 readme = "README.md"
-license = "MIT"
-license-files = ["LICENSE"]
 requires-python = ">=3.10"
 authors = [{ name = "Julien Moura", email = "dev@ingeoveritas.com" }]
 maintainers = [{ name = "Julien Moura", email = "dev@ingeoveritas.com" }]
@@ -44,6 +42,9 @@ dependencies = [
     "requests>=2.32.5,<3",
     "tzdata==2024.* ; sys_platform == 'win32'",
 ]
+
+[project.license]
+text = "MIT"
 
 [project.optional-dependencies]
 dev = [