fix: TypeError when adding skus to entitlements() method

CHANGELOG.md

@@ -50,6 +50,8 @@ These changes are available on the `master` branch, but have not yet been releas
   channels. ([#2603](https://github.com/Pycord-Development/pycord/pull/2603))
 - Fixed `SlashCommand`'s `ctx` parameter couldn't be `Union` type.
   ([#2611](https://github.com/Pycord-Development/pycord/pull/2611))
+- Fixed `TypeError` when passing `skus` argument with a SKU list in `entitlements()`
+  method. ([#2627](https://github.com/Pycord-Development/pycord/issues/2627))
 
 ### Changed
 

discord/http.py

@@ -3012,7 +3012,7 @@ def list_entitlements(
         if user_id is not None:
             params["user_id"] = user_id
         if sku_ids is not None:
-            params["sku_ids"] = ",".join(sku_ids)
+            params["sku_ids"] = ",".join(str(sku_id) for sku_id in sku_ids)
         if before is not None:
             params["before"] = before
         if after is not None: