ChromaDocumentStore remote connection with host and port does not work.

[lekhnath]

Describe the bug
ChromaDocumentStore remote connection with host and port does not work.

Error message

File [/opt/miniconda3/envs/rag/lib/python3.11/site-packages/haystack_integrations/document_stores/chroma/document_store.py:104](http://localhost:8888/opt/miniconda3/envs/rag/lib/python3.11/site-packages/haystack_integrations/document_stores/chroma/document_store.py#line=103), in ChromaDocumentStore._ensure_initialized(self)
    101     raise ValueError(error_message)
    102 if self._host and self._port is not None:
    103     # Remote connection via HTTP client
--> 104     client = chromadb.HttpClient(
    105         host=self._host,
    106         port=self._port,
    107     )
    108 elif self._persist_path is None:
    109     # In-memory storage
    110     client = chromadb.Client()

File [/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/__init__.py:204](http://localhost:8888/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/__init__.py#line=203), in HttpClient(host, port, ssl, headers, settings, tenant, database)
    201 settings.chroma_server_ssl_enabled = ssl
    202 settings.chroma_server_headers = headers
--> 204 return ClientCreator(tenant=tenant, database=database, settings=settings)

File [/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/api/client.py:65](http://localhost:8888/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/api/client.py#line=64), in Client.__init__(self, tenant, database, settings)
     62 # Get the root system component we want to interact with
     63 self._server = self._system.instance(ServerAPI)
---> 65 user_identity = self.get_user_identity()
     67 maybe_tenant, maybe_database = maybe_set_tenant_and_database(
     68     user_identity,
     69     overwrite_singleton_tenant_database_access_from_auth=settings.chroma_overwrite_singleton_tenant_database_access_from_auth,
     70     user_provided_tenant=tenant,
     71     user_provided_database=database,
     72 )
     73 if maybe_tenant:

File [/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/api/client.py:110](http://localhost:8888/opt/miniconda3/envs/rag/lib/python3.11/site-packages/chromadb/api/client.py#line=109), in Client.get_user_identity(self)
    108     raise e
    109 except Exception as e:
--> 110     raise ValueError(str(e))

ValueError: {"detail":"Not Found"} (trace ID: 9f0f8fb545ac9820e192e62fd2bc82ea)

Expected behavior
Successfully connect to chromadb server.

Additional context
Documentation - ChromaDocumentStore

To Reproduce
Steps to reproduce the behavior

System:

• OS: MacOS
• GPU/CPU: M3
• Haystack version (commit or version number): haystack-ai (b1353f4)
• DocumentStore: ChromaDocumentStore
• Reader: -
• Retriever: -

[julian-risch]

duplicate of deepset-ai/haystack-core-integrations#1197