Specifying LIST_URL also updates REMOTE_URL

[orbitz]

Describe the bug
If you specify a *_LIST_URL tenv will also use that URL to modify the *_REMOTE_URL when downloading. This means that you cannot separate listing from downloading. For example, I specifying TF_LIST_URL to https://somewhere/api/github/tenv/gruntwork-io/terragrunt/releases/ and tenv tries to then download the chosen release from https/somewhere/api/github/tenv/gruntwork-io/terragrunt/releases/gruntwork-io/terragrunt/releases/download/v0.69.3/terragrunt_linux_amd64, which is clearly incorrect.

You can work around this by specifying both URLs, but the issue is that it means you cannot let LIST do its thing and say WHERE to download the release from, sort of defeating the purpose.

To Reproduce
Steps to reproduce the behavior:

1. Specify *_LIST_URL env variable.
2. Perform an operation using the CLI for the tool you specified the URL.
3. Observe that download fails due to the LIST URL being used as the head of download.

Expected behavior
I would expect the LIST_URL to only be used for listing the downloads and then use the URL specified in the download for downloading.

Screenshots
Now screenshot

Environment (please complete the following information):

• OS: Linux
• tofuenv version: 3.2.10

Additional context
I believe this comes from:

https://github.com/tofuutils/tenv/blob/main/config/remote.go#L122-L128

[dvaumoron]

TFENV_INSTALL_MODE=direct