fix: Hop into venv before accessing pip command

{{cookiecutter.project_name}}/makefile

@@ -223,7 +223,7 @@ setup-ragger:
 	@if [ ! -f data/processed/document_store.jsonl ]; then \
 		mv src/ragger/data/processed/document_store.jsonl data/processed/; \
 	fi
-	@{{'poetry add' if cookiecutter.dependency_manager != 'pip' else 'pip install'}} -e src/ragger
+	@{{'poetry add' if cookiecutter.dependency_manager != 'pip' else '. .venv/bin/activate && pip install'}} -e src/ragger
 	@{{'poetry run ' if cookiecutter.dependency_manager != 'pip' else '. .venv/bin/activate && '}}python src/scripts/fix_dot_env_file.py --include-openai
 
 add-rag:  ## Add RAG functionality to the project