Bump uglifier from 4.2.0 to 4.2.1

Bumps [uglifier](https://github.com/lautis/uglifier) from 4.2.0 to 4.2.1.
- [Changelog](https://github.com/lautis/uglifier/blob/master/CHANGELOG.md)
- [Commits](lautis/uglifier@v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: uglifier
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -111,7 +111,7 @@ GEM
     drb (2.2.1)
     ed25519 (1.3.0)
     erubi (1.13.0)
-    execjs (2.7.0)
+    execjs (2.9.1)
     ffi (1.15.5)
     globalid (1.2.1)
       activesupport (>= 6.1)
@@ -241,7 +241,7 @@ GEM
     turbolinks-source (5.2.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.0)
+    uglifier (4.2.1)
       execjs (>= 0.3.0, < 3)
     unf (0.2.0)
     useragent (0.16.10)