We already added some preliminary support for Go1.23 and Go1.24 in the
following patches before:

- 48920809 (tracing/runtime: Add support for Go1.23 (preliminary, incomplete))
- 38c589c2 (tracing/runtime: Update support for Go1.23 (still incomplete))
- 443006d5 (tracing/runtime: Add support for Go1.24 (incomplete))

Those patches were incomplete because with go1.23 access to
runtime.stopTheWorld becomes infeasible and the build breaks like this:

    go123/tracing$ go1.23 test
    # lab.nexedi.com/kirr/go123/tracing.test
    link: lab.nexedi.com/kirr/go123/tracing/internal/xruntime: invalid reference to runtime.stopTheWorld
    FAIL    lab.nexedi.com/kirr/go123/tracing [build failed]

The problem here is that, as explained in https://github.com/golang/go/issues/68167,
go:linkname access to runtime.stopTheWorld is no longer available and
the Go team explicitly rejected our proposal restoring the access.

Actually no-way to access to runtim...