fix(utils): correct file path replacement in stack trace

- Ensure directory separator is appended to `base_path()` for accurate file path replacement
- Prevent potential mismatches caused by missing directory separator in file paths

Author: guanguans

src/Support/Utils.php

@@ -38,7 +38,7 @@ public static function backtraces(int $limit = 0, array|int $forgetLines = 0): a
             ->map(static fn (array $trace, int $index): string => \sprintf(
                 '#%s %s:%s',
                 $index,
-                str_replace(base_path(), '', $trace['file']),
+                str_replace(base_path().\DIRECTORY_SEPARATOR, '', $trace['file']),
                 $trace['line']
             ))
             ->values()