vendor: update rjeczalik/notify so that it compiles on go1.11 (#17467)

vendor/github.com/rjeczalik/notify/README.md

vendor/github.com/rjeczalik/notify/appveyor.yml

vendor/github.com/rjeczalik/notify/debug_debug.go

vendor/github.com/rjeczalik/notify/debug_nodebug.go

vendor/github.com/rjeczalik/notify/watcher_fsevents_cgo.go

...or/github.com/rjeczalik/notify/watcher_fsevents_go1.10.go

...or/github.com/rjeczalik/notify/watcher_fsevents_go1.11.go

vendor/github.com/rjeczalik/notify/watcher_notimplemented.go

vendor/github.com/rjeczalik/notify/watcher_readdcw.go

vendor/github.com/rjeczalik/notify/watcher_stub.go

vendor/github.com/rjeczalik/notify/watcher_trigger.go

vendor/vendor.json