Bump orca version to 2.40.3

Signed-off-by: NJemish Patel <jpatel@pivotal.io>

gpAux/releng/releng.mk

@@ -120,7 +120,7 @@ sync_tools: opt_write_test /opt/releng/apache-ant
 	-Divyrepo.user=$(IVYREPO_USER) -Divyrepo.passwd="$(IVYREPO_PASSWD)" resolve);
 	@echo "Resolve finished";
 
-	LD_LIBRARY_PATH='' wget -O - https://github.com/greenplum-db/gporca/releases/download/v2.40.0/bin_orca_centos5_release.tar.gz | tar zxf - -C $(BLD_TOP)/ext/$(BLD_ARCH)
+	LD_LIBRARY_PATH='' wget -O - https://github.com/greenplum-db/gporca/releases/download/v2.40.3/bin_orca_centos5_release.tar.gz | tar zxf - -C $(BLD_TOP)/ext/$(BLD_ARCH)
 
 clean_tools: opt_write_test
 	@cd releng/make/dependencies; \