Windows - arm64 build error

[amitsaha]

Building fails on Windows ARM64 with Go 1.17:

PS C:\Users\amits\work\github.com\99designs\keyring> $env:GOOS="windows"
PS C:\Users\amits\work\github.com\99designs\keyring> $env:GOARCH="arm64"
PS C:\Users\amits\work\github.com\99designs\keyring> go build
# golang.org/x/sys/windows
..\..\..\..\go\pkg\mod\golang.org\x\[email protected]\windows\dll_windows.go:24:6: missing function body
..\..\..\..\go\pkg\mod\golang.org\x\[email protected]\windows\dll_windows.go:25:6: missing function body
..\..\..\..\go\pkg\mod\golang.org\x\[email protected]\windows\zsyscall_windows.go:2533:38: undefined: WSAData
..\..\..\..\go\pkg\mod\golang.org\x\[email protected]\windows\zsyscall_windows.go:2773:51: undefined: Servent
..\..\..\..\go\pkg\mod\golang.org\x\[email protected]\windows\zsyscall_windows.go:2787:50: undefined: Servent

Upgrading the golang.org/x/sys package gets the build to pass:

> go get golang.org/x/sys
go get: upgraded golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7 => v0.0.0-20211216021012-1d35b9e2eb4e

> go build #works

>