Docutils is not declared as a direct dependency

[dvzrv]

Hi! 👋

I noticed that docutils is used directly, but it is not declared as a direct dependency:

sphinxcontrib-programoutput/src/sphinxcontrib/programoutput/__init__.py

Lines 45 to 50 in 50c74a5

	from docutils import nodes
	from docutils.parsers import rst
	from docutils.parsers.rst.directives import flag
	from docutils.parsers.rst.directives import nonnegative_int
	from docutils.parsers.rst.directives import unchanged
	from docutils.statemachine import StringList

With only declaring sphinx as a direct dependency, docutils is pulled in transitively.
However, not declaring direct dependencies properly leads to breaking dependency resolution.
Having intact dependency resolution is particularly important in (distribution, but also language) package management.

It would be great if the direct dependency on docutils was declared. 🙏