TEST: bump go version to 1.23

[v1v]

Use elastic/golang-crossbuild#527 on the top of #42705

Remove the qemu dependency - use the host architecture always
Use the specific golang crossbuild image for arm64 in arm64
Use the private docker namespace to validate things work ok

[botelastic]

This pull request doesn't have a Team:<team> label.

[mergify]

This pull request does not have a backport label.
If this is a bug or security fix, could you label this PR @v1v? 🙏.
For such, you'll need to label your PR with:

• The upcoming major version of the Elastic Stack
• The upcoming minor version of the Elastic Stack (if you're not pushing a breaking change)

To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit
• backport-active-all is the label that automatically backports to all active branches.
• backport-active-8 is the label that automatically backports to all active minor branches for the 8 major.
• backport-active-9 is the label that automatically backports to all active minor branches for the 9 major.

[v1v]

unitTest uses the golang-crossbuild hence we need to use qemu

[v1v]

crosscompile uses the golang-crossbuild hence we need to use qemu

[v1v]

This won't be needed as soon as we merge elastic/golang-crossbuild#527

[v1v]

Specific script that can be used in other places