fix(federation): log warning when setting server status to failure due to too old job

This would've helped in debugging a problem, so here's a logging hint
for next time.

Signed-off-by: Pablo Zimdahl <pablo@nextcloud.com>

Author: pabzm

apps/federation/lib/BackgroundJob/GetSharedSecret.php

@@ -90,6 +90,7 @@ protected function run($argument) {
 		// kill job after 30 days of trying
 		$deadline = $currentTime - $this->maxLifespan;
 		if ($created < $deadline) {
+			$this->logger->warning("This job is too old and gets stopped now without retention. Setting server status of '{$target}' to failure.");
 			$this->retainJob = false;
 			$this->trustedServers->setServerStatus($target, TrustedServers::STATUS_FAILURE);
 			return;

apps/federation/lib/BackgroundJob/RequestSharedSecret.php

@@ -93,6 +93,7 @@ protected function run($argument) {
 		// kill job after 30 days of trying
 		$deadline = $currentTime - $this->maxLifespan;
 		if ($created < $deadline) {
+			$this->logger->warning("This job is too old and gets stopped now without retention. Setting server status of '{$target}' to failure.");
 			$this->retainJob = false;
 			$this->trustedServers->setServerStatus($target, TrustedServers::STATUS_FAILURE);
 			return;