iptables: bump PKG_RELEASE

Following {arp,eb}tables-nft addition, bump PKG_RELEASE

Signed-off-by: Etienne Champetier <[email protected]>

package/network/utils/iptables/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=iptables
 PKG_VERSION:=1.8.7
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 PKG_SOURCE_URL:=https://netfilter.org/projects/iptables/files
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2