Build(deps): Bump highline from 2.0.3 to 2.1.0 (#19669)

Bumps [highline](https://github.com/JEG2/highline) from 2.0.3 to 2.1.0.
- [Release notes](https://github.com/JEG2/highline/releases)
- [Changelog](https://github.com/JEG2/highline/blob/master/Changelog.md)
- [Commits](https://github.com/JEG2/highline/commits)

---
updated-dependencies:
- dependency-name: highline
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Gemfile.lock

@@ -163,7 +163,7 @@ GEM
     hana (1.3.7)
     hashdiff (1.0.1)
     hashie (5.0.0)
-    highline (2.0.3)
+    highline (2.1.0)
     hkdf (1.0.0)
     htmlentities (4.3.4)
     http_accept_language (2.1.1)