fix(Update): Handle upstream exception scenario cleanly

Fixes #42476

Signed-off-by: Josh Richards <[email protected]>

Author: joshtrichards

Diff for: core/Command/App/Update.php

@@ -108,6 +108,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 							'exception' => $e,
 						]);
 						$output->writeln('Error: ' . $e->getMessage());
+						$result = false;
 						$return = 1;
 					}