Fix a few psalm issues and moved back to psalm/phar 4.18

Signed-off-by: Carl Schwan <carl@carlschwan.eu>

1 files changed, 2 insertions, 2 deletions

diff --git a/core/Command/Config/System/GetConfig.php b/core/Command/Config/System/GetConfig.php
index 3fce89572c8..f7e573f6869 100644
--- a/core/Command/Config/System/GetConfig.php
+++ b/core/Command/Config/System/GetConfig.php
@@ -65,9 +65,9 @@ class GetConfig extends Base {
 	 *
 	 * @param InputInterface  $input  An InputInterface instance
 	 * @param OutputInterface $output An OutputInterface instance
-	 * @return null|int null or 0 if everything went fine, or an error code
+	 * @return int 0 if everything went fine, or an error code
 	 */
-	protected function execute(InputInterface $input, OutputInterface $output): int {
+	protected function execute(InputInterface $input, OutputInterface $output) {
 		$configNames = $input->getArgument('name');
 		$configName = array_shift($configNames);
 		$defaultValue = $input->getOption('default-value');