Modifies latest-allowed to only match stable versions

[vahid-haghighat]

Description

In the current implementation, the latest and latest-allowed options have potentially confusing behaviours:

• latest-allowed can unexpectedly include pre-release versions
• latest is limited to stable versions only

This discrepancy can cause issues, particularly in CI/CD pipelines where version predictability is crucial.
This PR is fixing that difference in the behaviours and makes sure the latest-allowed only finds stable versions.

[grillba]

cant it just fix it so latest-allowed works in the same way as latest? This was fixed in version 1.0.0 for latest

Note I'm not a maintainer on this repo, just chanced upon this same issue

Edit: tenv supports only installing stable releases: tenv terraform install latest-allowed

[kvendingoldo]

@grillba you can use latest-pre

[vahid-haghighat]

cant it just fix it so latest-allowed works in the same way as latest? This was fixed in version 1.0.0 for latest

Note I'm not a maintainer on this repo, just chanced upon this same issue

Edit: tenv supports only installing stable releases: tenv terraform install latest-allowed

It is possible to fix the latest-allowed, but I wasn't sure if that was the right move. Maybe some people are using pre-releases with latest-allowed? I would have no idea why, though 😄

[Zordrak]

I think I am inclined to agree. latest-allowed and latest should be common. If latest matches only stable, latest-allowed probably should too.

[vahid-haghighat]

@Zordrak I updated the latest-allowed to match stable versions only.