GPG Warning, due to a slight misconfiguration of the repo .list file

[wissam]

The result for that is:

W: GPG error: https://repo.charm.sh/apt * InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 03BBF595D4DFD35C

Obviously it works, but you will get a warning on every repo update.

[wissam]

I checked Gemfury's docs, there is a slight difference in the .list file between a repo that is signed and unsigned. I see that the same misconfiguration is on other repos that support apt installation, ie: soft-serve. I will open an issue with all the repos I can find and refer to this issue
The Doc reference I mentioned

[wissam]

Note: Similar issue was found in :"wishlist", "melt", "skate" and "soft-serve".
"Glow" had the correct configuration on the other hand.