Build(deps): Bump sshkey from 2.0.0 to 3.0.0 (#23248)

Bumps [sshkey](https://github.com/bensie/sshkey) from 2.0.0 to 3.0.0.
- [Release notes](https://github.com/bensie/sshkey/releases)
- [Commits](https://github.com/bensie/sshkey/compare/2.0.0...3.0.0)

---
updated-dependencies:
- dependency-name: sshkey
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -489,7 +489,7 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    sshkey (2.0.0)
+    sshkey (3.0.0)
     stackprof (0.2.25)
     syntax_tree (6.1.1)
       prettier_print (>= 1.2.0)