Build(deps): Bump @babel/standalone in /app/assets/javascripts (#21351)

Bumps [@babel/standalone](https://github.com/babel/babel/tree/HEAD/packages/babel-standalone) from 7.21.4 to 7.21.8.
- [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/v7.21.8/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

@@ -76,7 +76,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.21.8",
-    "@babel/standalone": "^7.21.4",
+    "@babel/standalone": "^7.21.8",
     "@ember/optional-features": "^2.0.0",
     "@uppy/aws-s3": "^3.0.6",
     "@uppy/aws-s3-multipart": "^3.1.3",

app/assets/javascripts/yarn.lock

@@ -985,10 +985,10 @@
   dependencies:
     regenerator-runtime "^0.13.11"
 
-"@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/standalone@^7.21.8":
+  version "7.21.8"
+  resolved "https://registry.yarnpkg.com/@babel/standalone/-/standalone-7.21.8.tgz#e24b3fb8aafe1f0f3db4d2f0de59dd2baea13dc2"
+  integrity sha512-Od6cBJ8dm9wjAt+3olvO7N3s+8UsCkX3hH41Ew3BlFJw1QQtbctplq3kuwzzfk+YcmXE95k8fJCzbnhf32+BxQ==
 
 "@babel/template@^7.16.7", "@babel/template@^7.20.7":
   version "7.20.7"