This is not needed to run tests.

--- dunamai-1.23.0/pyproject.toml.orig
+++ dunamai-1.23.0/pyproject.toml
@@ -36,7 +36,6 @@
 ]
 black = { version = "22.1.0", python = "^3.7" }
 mypy = { version = "^0.982", python = "^3.7" }
-argparse-manpage = {version = "^4.6", python = ">=3.7"}
 
 [tool.poetry.scripts]
 dunamai = 'dunamai.__main__:main'