Bump terser from 4.6.3 to 4.6.4 (#30283)

Bumps [terser](https://github.com/terser/terser) from 4.6.3 to 4.6.4.
- [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/v4.6.3...v4.6.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -133,7 +133,7 @@
     "shelljs": "^0.8.3",
     "stylelint": "^13.2.0",
     "stylelint-config-twbs-bootstrap": "^2.0.1",
-    "terser": "^4.6.3",
+    "terser": "^4.6.4",
     "vnu-jar": "20.1.2"
   },
   "files": [