upgrade go1.21.2 and Go 1.20.9

[hawkingrei]

Enhancement

These minor releases include 1 security fixes following the security policy:

cmd/go: line directives allows arbitrary execution during build

"//line" directives can be used to bypass the restrictions on "//go:cgo_"
directives, allowing blocked linker and compiler flags to be passed during
compliation. This can result in unexpected execution of arbitrary code when
running "go build". The line directive requires the absolute path of the file in
which the directive lives, which makes exploting this issue significantly more
complex.

This is CVE-2023-39323 and Go issue https://go.dev/issue/63211.

but the other is importance, too.

golang/go#62478
golang/go#62505
golang/go#62464
golang/go#62598

[wuhuizuo]

/label security