Update ResolvesDumpSource.php

Author: iammursal

src/Illuminate/Foundation/Concerns/ResolvesDumpSource.php

@@ -194,7 +194,7 @@ public function mapToLocalPath($path)
         }
 
         if (str_starts_with($path, $remoteRoot)) {
-            return $hostRoot . substr($path, strlen($remoteRoot));
+            return $hostRoot.substr($path, strlen($remoteRoot));
         }
 
         return $path;