build(deps): Update mdformat-gfm requirement from ~=0.3.5 to ~=0.3.6

Updates the requirements on [mdformat-gfm](https://github.com/hukkinj1/mdformat-gfm) to permit the latest version.
- [Commits](hukkin/mdformat-gfm@0.3.5...0.3.6)

---
updated-dependencies:
- dependency-name: mdformat-gfm
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements-docs.txt

@@ -4,7 +4,7 @@ docspec-python~=2.2.1
 typer
 docstring_parser
 jinja2
-mdformat-gfm~=0.3.5
+mdformat-gfm~=0.3.6
 mdformat-footnote~=0.1.1
 mdformat-black~=0.1.1
 mdformat-tables~=0.4.1