Bump terser from 5.19.4 to 5.20.0 (#948)

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](terser/terser@v5.19.4...v5.20.0)

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

package.json

@@ -91,7 +91,7 @@
     "rollup": "^3.28.0",
     "stylelint": "^15.10.2",
     "stylelint-config-twbs-bootstrap": "^11.0.1",
-    "terser": "^5.19.2",
+    "terser": "^5.20.0",
     "vnu-jar": "23.4.11"
   },
   "files": [