update openlane commit

openlane/Makefile

diff --git a/openlane/Makefile b/openlane/Makefile
index e0d991e..e7a257f 100644
--- a/openlane/Makefile
+++ b/openlane/Makefile
@@ -85,8 +85,9 @@
 		echo "Deleting exisiting $(OPENLANE_ROOT)" && \
 		rm -rf $(OPENLANE_ROOT) && sleep 2; \
 		fi
-	git clone https://github.com/The-OpenROAD-Project/OpenLane --branch=$(OPENLANE_TAG) --depth=1 $(OPENLANE_ROOT) && \
+	git clone https://github.com/The-OpenROAD-Project/OpenLane $(OPENLANE_ROOT) && \
 		cd $(OPENLANE_ROOT) && \
+		git checkout --branch=$(OPENLANE_TAG) && \
 		export OPENLANE_IMAGE_NAME=efabless/openlane:$(OPENLANE_TAG) && \
 		export IMAGE_NAME=efabless/openlane:$(OPENLANE_TAG) && \
 		$(MAKE) pull-openlane