fix: cleanup makefile

Author: Vinit Kumar

Makefile

@@ -36,12 +36,12 @@ clean-build: ## remove build artifacts
 	rm -fr dist/
 	rm -fr .eggs/
 	find . -name '*.egg-info' -exec rm -fr {} +
-	find . -name '*.egg' -exec rm -f {} +
+	find . -name '*.egg' -exec rm -rf {} +
 
 clean-pyc: ## remove Python file artifacts
 	find . -name '*.pyc' -exec rm -f {} +
 	find . -name '*.pyo' -exec rm -f {} +
-	find . -name '*~' -exec rm -f {} +
+	find . -name '*~' -exec rm -rf {} +
 	find . -name '__pycache__' -exec rm -fr {} +
 
 clean-test: ## remove test and coverage artifacts