Build(deps-dev): Bump terser in /app/assets/javascripts (#23631)

Bumps [terser](https://github.com/terser/terser) from 5.19.4 to 5.20.0.
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v5.19.4...v5.20.0)

---
updated-dependencies:
- dependency-name: terser
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

@@ -100,7 +100,7 @@
     "select-kit": "1.0.0",
     "sinon": "^16.0.0",
     "source-map": "^0.7.4",
-    "terser": "^5.19.4",
+    "terser": "^5.20.0",
     "tippy.js": "^6.3.7",
     "truth-helpers": "1.0.0",
     "util": "^0.12.5",

app/assets/javascripts/yarn.lock

@@ -10177,10 +10177,10 @@ terser-webpack-plugin@^5.3.7:
     serialize-javascript "^6.0.1"
     terser "^5.16.8"
 
-terser@^5.16.8, terser@^5.19.4, terser@^5.3.0, terser@^5.7.0:
-  version "5.19.4"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.19.4.tgz#941426fa482bf9b40a0308ab2b3cd0cf7c775ebd"
-  integrity sha512-6p1DjHeuluwxDXcuT9VR8p64klWJKo1ILiy19s6C9+0Bh2+NWTX6nD9EPppiER4ICkHDVB1RkVpin/YW2nQn/g==
+terser@^5.16.8, terser@^5.20.0, terser@^5.3.0, terser@^5.7.0:
+  version "5.20.0"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.20.0.tgz#ea42aea62578703e33def47d5c5b93c49772423e"
+  integrity sha512-e56ETryaQDyebBwJIWYB2TT6f2EZ0fL0sW/JRXNMN26zZdKi2u/E/5my5lG6jNxym6qsrVXfFRmOdV42zlAgLQ==
   dependencies:
     "@jridgewell/source-map" "^0.3.3"
     acorn "^8.8.2"