[version] Update openai version to 0.28.0 (#866)

pyproject.toml

@@ -1,8 +1,11 @@
 [tool.poetry]
 name = "embedchain"
-version = "0.0.81"
+version = "0.0.82"
 description = "Data platform for LLMs - Load, index, retrieve and sync any unstructured data"
-authors = ["Taranjeet Singh, Deshraj Yadav"]
+authors = [
+    "Taranjeet Singh <taranjeet@embedchain.ai>",
+    "Deshraj Yadav <deshraj@embedchain.ai>",
+]
 license = "Apache License"
 readme = "README.md"
 exclude = [
@@ -89,7 +92,7 @@ python = ">=3.9,<3.13"
 python-dotenv = "^1.0.0"
 langchain = "^0.0.279"
 requests = "^2.31.0"
-openai = "^0.27.5"
+openai = ">=0.28.0"
 tiktoken = { version="^0.4.0", optional=true }
 chromadb ="^0.4.8"
 youtube-transcript-api = { version="^0.6.1", optional=true }
@@ -143,7 +146,7 @@ pytest-asyncio = "^0.21.1"
 [tool.poetry.extras]
 streamlit = ["streamlit"]
 community = ["llama-hub"]
-opensource = ["sentence-transformers", "torch", "gpt4all", "langchain"]
+opensource = ["sentence-transformers", "torch", "gpt4all"]
 elasticsearch = ["elasticsearch"]
 opensearch = ["opensearch-py"]
 poe = ["fastapi-poe"]
@@ -163,7 +166,6 @@ dataloaders=[
     "docx2txt",
     "duckduckgo-search",
     "jq",
-    "langchain",
     "pypdf",
     "pytube",
     "sentence-transformers",