[monitoring-plugins] Fix types in check_apt

[Lorenz Kästle]

 Module: monitoring-plugins
 Branch: master
 Commit: 15ecdb73ce5cda54f824e5a63ee8e801bf16a996
 Author: Lorenz Kästle <12514511+RincewindsHat at users.noreply.github.com>
   Date: Mon Sep 15 16:00:35 2025 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=15ecdb73

Fix types in check_apt

---

 plugins/check_apt.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/plugins/check_apt.c b/plugins/check_apt.c
index e840184b..ab66a8d2 100644
--- a/plugins/check_apt.c
+++ b/plugins/check_apt.c
@@ -310,8 +310,8 @@ run_upgrade_result run_upgrade(const upgrade_type upgrade, const char *do_includ
 		die(STATE_UNKNOWN, _("%s: Error compiling regexp: %s"), progname, rerrbuf);
 	}
 
-	struct output chld_out;
-	struct output chld_err;
+	output chld_out;
+	output chld_err;
 	char *cmdline = NULL;
 	cmdline = construct_cmdline(upgrade, upgrade_opts);
 	if (input_filename != NULL) {
@@ -410,8 +410,8 @@ int run_update(char *update_opts) {
 	/* run the update */
 	cmdline = construct_cmdline(NO_UPGRADE, update_opts);
 
-	struct output chld_out;
-	struct output chld_err;
+	output chld_out;
+	output chld_err;
 	result = np_runcmd(cmdline, &chld_out, &chld_err, 0);
 	/* apt-get update changes exit status if it can't fetch packages.
 	 * since we were explicitly asked to do so, this is treated as