feat: add CLIENT SETNAME for connection identification

Adds client_name="haystack_vector_store_client" to all 4 Glide client
configurations (sync/async, standalone/cluster) so connections are
identifiable via CLIENT LIST on the server.

Fixes #3356

Signed-off-by: Anna Tao <annatao2004@gmail.com>

Author: atao2004

integrations/valkey/src/haystack_integrations/document_stores/valkey/document_store.py

@@ -224,6 +224,7 @@ def _get_connection(self) -> SyncGlideClient | SyncGlideClusterClient:
                     addresses=addresses,
                     use_tls=self._use_tls,
                     credentials=self._build_credentials(self._username, self._password),
+                    client_name="haystack_vector_store_client",
                     request_timeout=self._request_timeout,
                     reconnect_strategy=reconnect_strategy,
                 )
@@ -233,6 +234,7 @@ def _get_connection(self) -> SyncGlideClient | SyncGlideClusterClient:
                     addresses=addresses,
                     use_tls=self._use_tls,
                     credentials=self._build_credentials(self._username, self._password),
+                    client_name="haystack_vector_store_client",
                     request_timeout=self._request_timeout,
                     reconnect_strategy=reconnect_strategy,
                 )
@@ -261,6 +263,7 @@ async def _get_connection_async(self) -> GlideClient | GlideClusterClient:
                     addresses=addresses,
                     use_tls=self._use_tls,
                     credentials=self._build_credentials(self._username, self._password),
+                    client_name="haystack_vector_store_client",
                     request_timeout=self._request_timeout,
                     reconnect_strategy=reconnect_strategy,
                 )
@@ -270,6 +273,7 @@ async def _get_connection_async(self) -> GlideClient | GlideClusterClient:
                     addresses=addresses,
                     use_tls=self._use_tls,
                     credentials=self._build_credentials(self._username, self._password),
+                    client_name="haystack_vector_store_client",
                     request_timeout=self._request_timeout,
                     reconnect_strategy=reconnect_strategy,
                 )