fix: pyproject: Add minimal 'project' table

invoke failed to run and gave an error message:
error: No `project` table found in: `<path_to_invoke_checkout>/pyproject.toml`

Provide a minimal project table since maintainer will want to fill this in himself.

Signed-off-by: laurensmiers <laurens.miers@mind.be>

Author: laurensmiers

pyproject.toml

@@ -1,3 +1,7 @@
+[project]
+name = "invoke"
+version = "2.2.0"
+
 [tool.mypy]
 # check_untyped_defs = true
 # follow_imports_for_stubs = true