Update stubs

Author: phpstan-bot

stubs/ext/standard/ob_start.php

@@ -2,13 +2,13 @@
 
 /* main/output.c */
 /** @param callable $callback */
-#[\Until('8.4')]
+#[\Until('8.3')]
 function ob_start($callback = null, int $chunk_size = 0, int $flags = PHP_OUTPUT_HANDLER_STDFLAGS): bool
 {
 }
 /* main/output.c */
 /** @param callable|null $callback */
-#[\Since('8.4')]
+#[\Since('8.3')]
 function ob_start($callback = null, int $chunk_size = 0, int $flags = PHP_OUTPUT_HANDLER_STDFLAGS): bool
 {
 }