Replace mcp_core::content types with rmcp::model types (#3500)

crates/goose/src/agents/tool_execution.rs

@@ -11,7 +11,8 @@ use crate::config::permission::PermissionLevel;
 use crate::config::PermissionManager;
 use crate::message::{Message, ToolRequest};
 use crate::permission::Permission;
-use mcp_core::{Content, ToolResult};
+use mcp_core::ToolResult;
+use rmcp::model::Content;
 
 // ToolCallResult combines the result of a tool call with an optional notification stream that
 // can be used to receive notifications from the tool.