The internal apps are usually meant to demonstrate new features or to
produce screenshots for blog posts. In both cases it is better to be
using the latest version of Go as it might contain new features that are
needed, or simply to make the screenshots show an up-to-date Go version.

This allows giving nicer names to the services for screenshots.

Remove go version workaround. This will be addressed by merging
#2871 first.

Use go1.23.0 instead of go1.23 since the latter includes pre-release
versions which we don't want here.

Co-authored-by: Nick Ripley <nick.ripley@datadoghq.com>