Update unstable images to Go 1.23rc1

[atc0005]

Overview

From the release announcement on 2024-06-21:

Hello gophers,

We have just released go1.23rc1, a release candidate version of Go 1.23.
It is cut from release-branch.go1.23 at the revision tagged go1.23rc1.

Please try your production load tests and unit tests with the new version.
Your help testing these pre-release versions is invaluable.

Report any problems using the issue tracker:
https://go.dev/issue/new

If you have Go installed already, an easy way to try go1.23rc1
is by using the go command:

$ go install golang.org/dl/go1.23rc1@latest
$ go1.23rc1 download
You can download binary and source distributions from the usual place:
https://go.dev/dl/#go1.23rc1

To help validate the release, consider opting in to Go toolchain telemetry.
You can opt in by running the following command:

$ go1.23rc1 telemetry on
To find out what has changed in Go 1.23, read the draft release notes:
https://tip.golang.org/doc/go1.23

Cheers,
David and Michael for the Go team

References

• https://groups.google.com/g/golang-nuts/c/WQI1SsXZHcY