Certificate of .deb package not recognized when updating apt in Ubuntu 24.04.3 LTS

[JJMendozaGR]

I downloaded and installed VSCodium <<codium_1.106.27818_amd64.deb>> from this repository last 11/25/2025. Every time I update apt, this message keeps showing up, and VSCodium is not upgraded. I am not an expert on these matters, but I would like to know whether someone is trying to solve this issue. Thanks.

Originally posted by @JJMendozaGR in #2384

[daiyam]

Use https://repo.vscodium.dev/ (src: https://github.com/VSCodium/repositories-linux)