This fixes hopefully all remaining missing lib inputs, likely introduced
as a regression by our recent treewide switch from stdenv.lib to lib.
These instances are all I could find using nix-instantiate --parse using
the following command:
find "$NIXPKGS" -name '*.nix' \
-and ! -path "$NIXPKGS/pkgs/development/interpreters/python/cpython/docs/template.nix" \
-and ! -path '$NIXPKGS/.git/**' \
-print0 | xargs -0 nix-instantiate --parse >/dev/null
6f2fbf5f0b