Update Dec 5, 2023 tracked by Updatify

go1.21.5 (released 2023-12-05)

go1.21.5 (released 2023-12-05) includes security fixes to the go command, and the net/http and path/filepath packages, as well as bug fixes to the compiler, the go command, the runtime, and the crypto/rand, net, os, and syscall packages. See the Go 1.21.5 milestone on our issue tracker for details.