knot-resolver: fix previous change in userid

I have no idea why originaly knot user was specified but init script
uses kresd. I renamed it later to knot-resolver to fix compilation but
that causes kresd to not start. Correct value is kresd (same as is in
init script).

net/knot-resolver/Makefile

@@ -11,7 +11,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=knot-resolver
 PKG_VERSION:=3.1.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://secure.nic.cz/files/knot-resolver
@@ -34,7 +34,7 @@ define Package/knot-resolver
 	URL:=https://gitlab.labs.nic.cz/knot/resolver
 	DEPENDS=+knot-libs +knot-libzscanner +libuv +luajit +dnssec-rootkey +resolver-conf +luasec +luasocket +libstdcpp
 	PROVIDES:=dns-resolver
-	USERID:=knot-resolver=3536:knot-resolver=3536
+	USERID:=kresd=3536:kresd=3536
 endef
 
 define Package/knot-resolver/description