fix: renamed combo_positions to combination_positions

Author: Voyz

ibind/client/ibkr_client_mixins/portfolio_mixin.py

@@ -67,7 +67,7 @@ def portfolio_account_allocations(self: 'IbkrClient', account_ids: OneOrMany[str
         params = params_dict({'acctIds': account_ids})
         return self.get('portfolio/allocation', params=params)
 
-    def combo_positions(self: 'IbkrClient', account_id: str = None, no_cache: bool = False) -> Result:
+    def combination_positions(self: 'IbkrClient', account_id: str = None, no_cache: bool = False) -> Result:
         """
         Provides all positions held in the account acquired as a combination, including values such as ratios, size, and market value.