Update dependency uglifier to v4.2.1 (#178)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [uglifier](https://redirect.github.com/lautis/uglifier) | `4.2.0` ->
`4.2.1` |
[![age](https://developer.mend.io/api/mc/badges/age/rubygems/uglifier/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/rubygems/uglifier/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/rubygems/uglifier/4.2.0/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/rubygems/uglifier/4.2.0/4.2.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>lautis/uglifier (uglifier)</summary>

###
[`v4.2.1`](https://redirect.github.com/lautis/uglifier/blob/HEAD/CHANGELOG.md#421-22-September-2024)

[Compare
Source](https://redirect.github.com/lautis/uglifier/compare/v4.2.0...v4.2.1)

- fix Ruby 3.4 compatiblity, drop Ruby 2.3 and older support
([#&#8203;195](https://redirect.github.com/lautis/uglifier/issues/195))
- fix typos
([#&#8203;194](https://redirect.github.com/lautis/uglifier/issues/194))

</details>

---

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---

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Gemfile.lock

@@ -259,7 +259,7 @@ 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)
     web-console (4.2.1)
       actionview (>= 6.0.0)