Build(deps): Bump terser in /app/assets/javascripts (#21042)

Bumps [terser](https://github.com/terser/terser) from 5.16.8 to 5.16.9.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v5.16.8...v5.16.9)

---
updated-dependencies:
- dependency-name: terser
  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

@@ -94,7 +94,7 @@
     "select-kit": "1.0.0",
     "sinon": "^15.0.3",
     "source-map": "^0.7.4",
-    "terser": "^5.16.8",
+    "terser": "^5.16.9",
     "tippy.js": "^6.3.7",
     "util": "^0.12.5",
     "webpack": "^5.78.0",

app/assets/javascripts/yarn.lock

@@ -8943,10 +8943,10 @@ terser-webpack-plugin@^5.1.3:
     source-map "^0.6.1"
     terser "^5.7.2"
 
-terser@^5.16.8, terser@^5.3.0, terser@^5.7.2:
-  version "5.16.8"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.16.8.tgz#ccde583dabe71df3f4ed02b65eb6532e0fae15d5"
-  integrity sha512-QI5g1E/ef7d+PsDifb+a6nnVgC4F22Bg6T0xrBrz6iloVB4PUkkunp6V8nzoOOZJIzjWVdAGqCdlKlhLq/TbIA==
+terser@^5.16.9, terser@^5.3.0, terser@^5.7.2:
+  version "5.16.9"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.16.9.tgz#7a28cb178e330c484369886f2afd623d9847495f"
+  integrity sha512-HPa/FdTB9XGI2H1/keLFZHxl6WNvAI4YalHGtDQTlMnJcoqSab1UwL4l1hGEhs6/GmLHBZIg/YgB++jcbzoOEg==
   dependencies:
     "@jridgewell/source-map" "^0.3.2"
     acorn "^8.5.0"