fix: correct pyproject.toml for project-scaffold-cli

- Fixed package name from auto-readme-cli to project-scaffold-cli
- Fixed dependencies to match project-scaffold-cli requirements
- Fixed linting import sorting issues in test files

project_scaffold_cli/templates/go/go.mod.j2

@@ -0,0 +1,5 @@
+module {{ project_slug }}
+
+go 1.20
+
+require github.com/{{ author|replace(' ', '-') }}/{{ project_slug }} v1.0.0