package/go: security bump to 1.17.2

go1.17.2 (released 2021-10-07) includes a security fix to the linker and
misc/wasm directory, as well as bug fixes to the compiler, the runtime, the go
command, and to the time and text/template packages.

https://golang.org/doc/devel/release#go1.17.minor



Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>