Bump golang.org/x/sys from 0.19.0 to 0.20.0

Bumps [golang.org/x/sys](https://github.com/golang/sys) from 0.19.0 to 0.20.0.
- [Commits](golang/sys@v0.19.0...v0.20.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -2,7 +2,7 @@ module github.com/shogo82148/fsnotify
 
 go 1.17
 
-require golang.org/x/sys v0.19.0
+require golang.org/x/sys v0.20.0
 
 retract (
 	v1.5.3 // Published an incorrect branch accidentally https://github.com/fsnotify/fsnotify/issues/445