build(mkapi): Use forked version with trailing slash fix, other PRs included

See also:
- tony/mkapi#1
- daizutabi/mkapi#23
- daizutabi/mkapi#24

Author: tony

poetry.lock

@@ -41,6 +41,6 @@ pytest-mock = [
   {version="<3.0.0", python="<3"},
   {version="*", python=">=3"}
 ]
-mkapi = {version = "^1.0.12", extras = ["docs"], python = ">=3.7"}
+mkapi = {git = "https://github.com/tony/mkapi", rev = "git-pull", extras = ["docs"], python = ">=3.7"}
 mkdocs = {version = "^1.1.2", extras = ["docs"], python = ">=3.5"}
 mkdocs-material = {version = "^5.5.1", extras = ["docs"], python = ">=3.5"}