rstrip the rightmost / in the url constructor for confluence api

Author: danreic-15

src/mcp_atlassian/models/confluence/page.py

@@ -200,7 +200,7 @@ def from_api_response(cls, data: dict[str, Any], **kwargs: Any) -> "ConfluencePa
         url = None
         if base_url := kwargs.get("base_url"):
             page_id = data.get("id")
-
+            base_url = base_url.rstrip("/")
             # Use different URL format based on whether it's cloud or server
             is_cloud = kwargs.get("is_cloud", False)
             if is_cloud: