Build(deps): Bump @babel/standalone in /app/assets/javascripts (#20920)

Bumps [@babel/standalone](https://github.com/babel/babel/tree/HEAD/packages/babel-standalone) from 7.21.3 to 7.21.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.21.4/packages/babel-standalone)

---
updated-dependencies:
- dependency-name: "@babel/standalone"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

app/assets/javascripts/discourse/package.json

@@ -17,7 +17,7 @@
   },
   "dependencies": {
     "@babel/core": "^7.21.4",
-    "@babel/standalone": "^7.21.3",
+    "@babel/standalone": "^7.21.4",
     "@discourse/backburner.js": "^2.7.1-0",
     "@discourse/itsatrap": "^2.0.10",
     "@discourse/virtual-dom": "^2.1.2-0",

app/assets/javascripts/yarn.lock

@@ -975,10 +975,10 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
-"@babel/standalone@^7.21.3":
-  version "7.21.3"
-  resolved "https://registry.yarnpkg.com/@babel/standalone/-/standalone-7.21.3.tgz#c723905005ebdb5a13230636675f26262c97255a"
-  integrity sha512-c8feJERTAHlBEvihQUWrnUMLg2GzrwSnE76WDyN3fRJWju10pHeRy8r3wniIq0q7zPLhHd71PQtFVsn1H+Qscw==
+"@babel/standalone@^7.21.4":
+  version "7.21.4"
+  resolved "https://registry.yarnpkg.com/@babel/standalone/-/standalone-7.21.4.tgz#f1a7131775df87c526cc393c36d013acd2b3c609"
+  integrity sha512-Rw4nGqH/iyVeYxARKcz7iGP+njkPsVqJ45TmXMONoGoxooWjXCAs+CUcLeAZdBGCLqgaPvHKCYvIaDT2Iq+KfA==
 
 "@babel/template@^7.16.7", "@babel/template@^7.18.10", "@babel/template@^7.20.7":
   version "7.20.7"