Fix pytest version and update CI workflow

pyproject.toml

@@ -1,30 +1,59 @@
-[tool.poetry]
+[project]
 name = "man-card"
 version = "1.0.0"
 description = "A CLI tool that parses man pages and generates beautiful, printable command reference cards"
-authors = ["man-card contributors"]
-license = "MIT"
 readme = "README.md"
-packages = [{include = "man_card"}]
+requires-python = ">=3.9"
+license = {text = "MIT"}
+authors = [
+    {name = "Man Card Contributors"}
+]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+]
+keywords = ["cli", "manpage", "documentation", "reference-card", "terminal"]
 
-[tool.poetry.dependencies]
-python = "^3.9"
-click = "^8.1.7"
-fpdf2 = "^2.7.5"
-Pillow = "^10.1.0"
-rich = "^13.7.0"
-python-dotenv = "^1.0.0"
+dependencies = [
+    "click>=8.1.7",
+    "fpdf2>=2.7.5",
+    "Pillow>=10.1.0",
+    "rich>=13.7.0",
+    "python-dotenv>=1.0.0",
+]
 
-[tool.poetry.group.dev.dependencies]
-pytest = "^7.4.0"
-pytest-cov = "^4.1.0"
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.2.0",
+    "pytest-cov>=4.1.0",
+    "pytest-asyncio>=0.23.0",
+]
+
+[project.scripts]
+man-card = "man_card.cli:main"
 
 [build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["."]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 python_files = ["test_*.py"]
-python_classes = ["Test*"]
 python_functions = ["test_*"]
+
+[tool.coverage.run]
+source = ["man_card"]
+omit = ["tests/*"]
+
+[tool.coverage.report]
+exclude_lines = ["pragma: no cover", "def __repr__", "raise NotImplementedError"]