net-mgmt/collectd5: Chase 3141891, update sysutils/nut to 2.8.0

Nut upsclient.h no longer includes time.h. Apps which build against
upsclient.h must now include time.h or fail to detect nut libraries
due to missing time_t.

PR:		263791
Reported by:	Petteri Valkonen <petteri.valkonen@iki.fi>

net-mgmt/collectd5/files/patch-configure.ac

@@ -1,6 +1,14 @@
---- configure.ac.orig	2020-03-19 09:52:56.280271200 +0100
-+++ configure.ac	2020-03-27 19:05:05.205060000 +0100
-@@ -6475,7 +6475,7 @@ AC_ARG_WITH([libslurm],
+--- configure.ac.orig	2020-09-03 04:09:35.126575027 -0700
++++ configure.ac	2022-05-06 19:19:22.707837000 -0700
+@@ -5810,6 +5810,7 @@
+     [],
+     [],
+     [[
++      #include <time.h>
+       #include <stdlib.h>
+       #include <stdio.h>
+       #include <upsclient.h>
+@@ -6507,7 +6508,7 @@
      else if test -d "$with_libslurm/lib"; then
        AC_MSG_NOTICE([Not checking for libslurm: Manually configured])
        with_libslurm_cflags="-I$withval/include"