Don't die if releasenotes URL is not available

- poo#97316: Sometimes URL for release notes is not yet available
  for SLES. In this case record a soft failure instead of dying.

tests/installation/releasenotes_origin.pm

@@ -24,8 +24,10 @@ sub run {
     my $src = check_var('SCC_REGISTER', 'installation') ? "RPM" : "URL";
     enter_cmd "grep -o \"Got release notes.*\" /var/log/YaST2/y2log";
     assert_screen [qw(got-releasenotes-RPM got-releasenotes-URL)];
+    # poo#97316: It can happen that URL is not yet available for SLES
+    # so we only record a soft failure here
     unless (match_has_tag "got-releasenotes-$src") {
-        die "Release notes source does NOT match expectaions or not found in YaST logs, expected source: $src";
+        record_soft_failure("Release notes source does NOT match expectaions or not found in YaST logs, expected source: $src");
     }
     enter_cmd "exit";
     # If we don't have system role screen, release notes origin is verified on partitioning screen