Go mod tidy may report toolchain not available with a golang version not in the x.y.z format. This is affecting thanos builds in Konflux when using cachi2 and enabling hermetic builds.

The standard Go toolchains are named goV where V is a Go version denoting a beta release, release candidate, or release. For example, go1.21rc1 and go1.21.0 are toolchain names; go1.21 and go1.22 are not (the initial releases are go1.21.0 and go1.22.0), but go1.20 and go1.19 are.Non-standard toolchains use names of the form goV-suffix for any suffix.Toolchains are compared by comparing the version V embedded in the name (dropping the initial go and discarding off any suffix beginning with -). For example, go1.21.0 and go1.21.0-custom compare equal for ordering purposes.

We'd need to reference a valid, released Go toolchain

4.18, this is fixed in 4.19 onwards.

Trigger a build of thanos in Konflux