rebase: bump golang.org/x/crypto from 0.5.0 to 0.6.0

Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.5.0 to 0.6.0.
- [Release notes](https://github.com/golang/crypto/releases)
- [Commits](https://github.com/golang/crypto/compare/v0.5.0...v0.6.0)

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

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

vendor/golang.org/x/text/language/language.go

@@ -344,7 +344,7 @@ func (t Tag) Parent() Tag {
 	return Tag(compact.Tag(t).Parent())
 }
 
-// returns token t and the rest of the string.
+// nextToken returns token t and the rest of the string.
 func nextToken(s string) (t, tail string) {
 	p := strings.Index(s[1:], "-")
 	if p == -1 {