[Improvements] Upgrade langchain-openai package and other improvements (#1372)

tests/loaders/test_youtube_video.py

@@ -1,4 +1,5 @@
 import hashlib
+import json
 from unittest.mock import MagicMock, Mock, patch
 
 import pytest
@@ -22,7 +23,11 @@ def test_load_data(youtube_video_loader):
         )
     ]
 
-    with patch("embedchain.loaders.youtube_video.YoutubeLoader.from_youtube_url", return_value=mock_loader):
+    mock_transcript = [{"text": "sample text", "start": 0.0, "duration": 5.0}]
+
+    with patch("embedchain.loaders.youtube_video.YoutubeLoader.from_youtube_url", return_value=mock_loader), patch(
+        "embedchain.loaders.youtube_video.YouTubeTranscriptApi.get_transcript", return_value=mock_transcript
+    ):
         result = youtube_video_loader.load_data(video_url)
 
     expected_doc_id = hashlib.sha256((mock_page_content + video_url).encode()).hexdigest()
@@ -32,7 +37,11 @@ def test_load_data(youtube_video_loader):
     expected_data = [
         {
             "content": "This is a YouTube video content.",
-            "meta_data": {"url": video_url, "title": "Test Video"},
+            "meta_data": {
+                "url": video_url,
+                "title": "Test Video",
+                "transcript": json.dumps(mock_transcript, ensure_ascii=True),
+            },
         }
     ]