packages: dhclient, local-unbound require resolvconf

Both of these packages use resolvconf for various things.  Add a
dependency to make this work.

MFC after:	3 days
Reviewed by:	des
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D53115

release/packages/ucl/dhclient.ucl

@@ -0,0 +1,26 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2025 Lexi Winter <ivy@FreeBSD.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+deps {
+	# dhclient uses resolvconf to update /etc/resolv.conf in case the
+	# DHCP server returns nameserver addresses.
+	"resolvconf" {
+		version = "${VERSION}"
+	},
+}
+

release/packages/ucl/local-unbound.ucl

@@ -25,3 +25,11 @@ by running "service local_unbound setup" before restarting the service.
 EOM
 	}
 ]
+
+deps {
+	# local-unbound uses resolvconf to update resolv.conf and to generate
+	# its forward.conf.
+	"resolvconf" {
+		version = "${VERSION}"
+	},
+}