chore: avoid shallow clone temporarily

Author: mattwang44

Makefile

@@ -57,7 +57,7 @@ help:
 	@python3 -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)
 
 clone: ## Clone latest cpython repository to `../cpython/` if it doesn't exist
-	git clone --depth 1 --no-single-branch https://github.com/python/cpython.git $(CPYTHON_CLONE)  || echo "cpython exists"
+	git clone https://github.com/python/cpython.git $(CPYTHON_CLONE)  || echo "cpython exists"
 	cd $(CPYTHON_CLONE) && git checkout $(BRANCH)
 	curl -L https://github.com/python/cpython/commit/383f9a7.patch/\?full_index\=1 | git apply -v --index