fix(concerns): deprecate exec method

- Deprecate the exec method in the WithRunable trait
- Add deprecation warning message
- Suggest using the run method instead

src/Concerns/WithRunable.php

@@ -47,11 +47,19 @@ public function run($withOptions = [], ?callable $processTapper = null, ?callabl
      *
      * @throws InvalidOptionException
      *
-     * @deprecated The method is deprecated and will be removed in version 4.0.0.
+     * @deprecated The method is deprecated and will be removed in version 4.0.
      *             Please use the {@see run} instead.
      */
     protected function exec($withOptions = [], ?callable $processTapper = null, ?callable $callback = null): string
     {
+        @trigger_error(
+            sprintf(
+                'Since guanguans/soar-php 3.0: The "%s" method is deprecated and will be removed in version 4.0. Please use the "run" method instead.',
+                __METHOD__
+            ),
+            E_USER_DEPRECATED
+        );
+
         return $this->run($withOptions, $processTapper, $callback);
     }