Add PyInstaller compatibility support (fixes #2613)

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/test_pyinstaller_compat.py

@@ -0,0 +1,16 @@
+import unittest
+from unittest.mock import patch
+import sys
+
+from crewai.utilities.pyinstaller_compat import is_bundled, get_bundle_dir
+
+
+class TestPyInstallerCompat(unittest.TestCase):
+    def test_is_bundled_normal(self):
+        self.assertFalse(is_bundled())
+    
+    @patch.object(sys, 'frozen', True, create=True)
+    @patch.object(sys, '_MEIPASS', '/path/to/bundle', create=True)
+    def test_is_bundled_pyinstaller(self):
+        self.assertTrue(is_bundled())
+        self.assertEqual(get_bundle_dir(), '/path/to/bundle')