The answer to this notice is explained in the “Learn more” link included in the message — it leads to the official Meta topic on handling the component-template-resolving deprecation.
In short, this isn’t an update problem but a deprecation warning. It means one of your themes or plugins still uses old component-template code. The article explains how to identify which one.
I think the warning is related to a version of the Unanswered Filter component.
Do you use a custom version of that component, or did you install a different branch?