Migrate setup configuration to pyproject.toml

Change-Id: I2cbe020339564507ebd7492fb119e8ef88ecaebc
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

pyproject.toml

@@ -1,3 +1,38 @@
 [build-system]
 requires = ["pbr>=6.1.1"]
 build-backend = "pbr.build"
+
+[project]
+name = "oslo.metrics"
+description = "Oslo Metrics library"
+readme = "README.rst"
+authors = [
+    {name = "OpenStack", email = "openstack-discuss@lists.openstack.org"},
+]
+requires-python = ">=3.10"
+classifiers = [
+    "Environment :: OpenStack",
+    "Intended Audience :: Information Technology",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: Apache Software License",
+    "Operating System :: POSIX :: Linux",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: Implementation :: CPython",
+]
+dynamic = ["version", "dependencies"]
+
+[project.scripts]
+oslo-metrics = "oslo_metrics.__main__:main"
+
+[project.urls]
+Homepage = "https://docs.openstack.org/oslo.metrics"
+Repository = "https://opendev.org/openstack/oslo.metrics"
+
+[tool.setuptools]
+packages = ["oslo_metrics"]

setup.cfg

@@ -1,31 +1,2 @@
 [metadata]
 name = oslo.metrics
-author = OpenStack
-author_email = openstack-discuss@lists.openstack.org
-summary = Oslo Metrics API
-description_file =
-    README.rst
-home_page = https://opendev.org/openstack/oslo.metrics
-python_requires = >=3.10
-classifier =
-    Environment :: OpenStack
-    Intended Audience :: Developers
-    Intended Audience :: Information Technology
-    License :: OSI Approved :: Apache Software License
-    Operating System :: OS Independent
-    Programming Language :: Python
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
-    Programming Language :: Python :: 3.12
-    Programming Language :: Python :: 3.13
-    Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: Implementation :: CPython
-
-[files]
-packages =
-    oslo_metrics
-
-[entry_points]
-console_scripts =
-    oslo-metrics = oslo_metrics.__main__:main