You really just need to not forget to do that. Isn’t it that simple?

A less snarky answer, and why AWS is largely a non issue these days is because the secrets were designed out of code And are effectively provided as an integral part of the infrastructure which includes regular and reliable expiration and rotation. So any chance you get, design secrets in this way.

The only thing ever in code are references to the correct roles or secrets. Only ever references to the location of the secret. Get in the habit of this and the problem is drastically reduced and becomes something you don’t have to think about.