Make sure not to fail when the openswoole module is not installed.

Signed-off-by: Slavey Karadzhov <[email protected]>

compat/openswoole.php

@@ -6,7 +6,7 @@
 
 // @see https://github.com/mezzio/mezzio-swoole/issues/110#issuecomment-1500174967
 // Override the swoole_set_process_name function
-if (version_compare(phpversion('openswoole'), '22.0.0', '>=')) {
+if (version_compare((string)phpversion('openswoole'), '22.0.0', '>=')) {
     function swoole_set_process_name(string $process_name): void
     {
         Util::setProcessName($process_name);