Revert "Use upstream PR branch to install mkdocstrings"

This reverts commit d57c79c.

Author: pawamoy

pyproject.toml

@@ -122,6 +122,3 @@ format-command = "ruff format --config config/ruff.toml --stdin-filename {filena
 
 [tool.uv]
 default-groups = ["maintain", "ci", "docs"]
-
-[tool.uv.sources]
-mkdocstrings = { git = "https://github.com/mkdocstrings/mkdocstrings", rev = "bartosz/flag-skip-inventory" }